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Pope Gregory IX

Pope Gregory IX (Ugolino di Conti; c. 1170 – 22 August 1241) was the 178th pope of the Catholic Church, serving from 19 March 1227 until his death in Rome.^[1] A canon lawyer from a noble Roman family and nephew of Pope Innocent III, he was elevated to the cardinalate in 1198 and became known for his rigorous enforcement of ecclesiastical discipline and expansion of papal jurisdiction.^[2] During his pontificate, Gregory IX commissioned the Decretales (also known as the Liber Extra), a systematic compilation of papal decretals organized by Raymond of Peñafort, which superseded prior collections and formed the cornerstone of canon law until the 1917 Code.^[2] In 1231, responding to the spread of heresies such as Catharism and the inadequacies of local episcopal inquiries, he established the Papal Inquisition, authorizing Dominican friars as specialized inquisitors to investigate, try, and suppress doctrinal deviations through systematic procedures.^[3] Gregory's reign was defined by intense conflicts with Holy Roman Emperor Frederick II, whom he excommunicated in 1227 for delaying the Sixth Crusade and again in 1239 amid disputes over Sicilian sovereignty and imperial interference in papal elections, leading to invasions and a war that strained both secular and spiritual authorities.^[4] These struggles underscored his commitment to papal supremacy over temporal powers, even as they contributed to ongoing tensions between the Church and the Empire.

Early Life and Ecclesiastical Career

Family Origins and Birth

Ugolino di Conti, later Pope Gregory IX, was born in Anagni, a fortified town in the Lazio region of central Italy southeast of Rome, to the noble House of Counts of Segni (Conti di Segni), which held feudal possessions in the surrounding Campagna area.^[5]^[6] This family was renowned for producing multiple high-ranking churchmen, including Ugolino's close relative Pope Innocent III (r. 1198–1216), who was either his uncle or cousin, thereby embedding Ugolino within a network of ecclesiastical and temporal influence from an early age.^[5]^[7] The exact date of his birth remains uncertain, with historical estimates varying between approximately 1145 and circa 1170, reflecting inconsistencies in medieval records.^[7]^[5] His father is identified in some accounts as Tristano dei Conti di Segni, while others name Mathias, a figure who predeceased 1192; Ugolino had at least one brother, Adenulphus, who later served as rector of Anagni.^[5]^[8] These familial ties underscored the Conti di Segni's status as a comital lineage intertwined with both local nobility and the papal court, facilitating Ugolino's eventual ascent in the Church hierarchy.^[5]

Education and Rise in the Church

Ugolino di Conti, born circa 1145 in Anagni to the noble Conti di Segni family, commenced his ecclesiastical education at the local episcopal school.^[5] He subsequently advanced his studies in canon law at the University of Bologna and theology at the University of Paris, institutions renowned for their scholarly rigor in the late 12th century.^[5] Following his academic formation, Ugolino entered papal service under his cousin, Pope Innocent III (r. 1198–1216), who elevated him to the rank of cardinal-deacon of Sant'Eustachio in the consistory of December 1198.^[5] This appointment marked the onset of his prominent role in curial administration, leveraging his legal expertise amid the Church's expanding jurisdictional claims. In 1206, Innocent III further promoted him to cardinal-bishop of Ostia e Velletri, a position that positioned him as a key advisor on doctrinal and diplomatic matters.^[9] Ugolino's ascent accelerated through familial influence and demonstrated competence; by 1218 or 1219, he had become dean of the College of Cardinals, overseeing its proceedings and serving as archpriest of Saint Peter's Basilica.^[9] During the pontificates of Honorius III (r. 1216–1227) and beyond, he undertook legatine missions, including support for emerging mendicant orders, which honed his administrative acumen and solidified his reputation as a defender of papal prerogatives against secular encroachments.^[10]

Election and Early Pontificate

Election as Pope

Ugolino di Conti, the Cardinal-Bishop of Ostia, was unanimously elected pope by the College of Cardinals on March 19, 1227, the day after the death of his predecessor, Honorius III, on March 18.^[7]^[11] The election process was expedited, with an initial choice falling on Cardinal Konrad von Urach, who declined the office, prompting the cardinals to turn to Ugolino as a respected figure known for his administrative experience and alignment with reformist traditions from the era of Innocent III, his kinsman.^[11] Ugolino, advanced in years and initially reluctant to assume the pontificate due to his age and the burdens of the office, accepted the election and selected the name Gregory IX, evoking the legacy of earlier popes associated with ecclesiastical discipline.^[7] His coronation followed shortly thereafter, marking the formal commencement of a papacy that inherited ongoing tensions with secular powers, particularly Holy Roman Emperor Frederick II, though these conflicts did not directly influence the conclave itself.^[12] The swift and consensus-driven selection reflected the cardinals' preference for continuity in papal governance amid pressing issues like the Sixth Crusade and internal Church reforms.^[7]

Immediate Administrative Priorities

Upon his election on March 19, 1227, and formal installation shortly thereafter, Gregory IX prioritized the enforcement of prior papal commitments, issuing an order on approximately March 22 directing Emperor Frederick II to fulfill his vow to lead a crusade to the Holy Land, reflecting the papacy's ongoing administrative focus on coordinating major ecclesiastical initiatives amid fiscal and logistical strains from previous crusading efforts.^[7] This action underscored an immediate effort to stabilize international papal diplomacy and resource allocation, as the crusade's delay threatened Church prestige and revenues tied to indulgences and tithes. In September 1227, Gregory held a consistory on the 18th to create new cardinals, bolstering the College of Cardinals, which had been depleted, thereby ensuring continuity in curial governance, judicial functions, and advisory roles essential for papal administration.^[13] Concurrently, he appointed the first judges delegate specifically tasked as inquisitors against heretical depravity, initiating a structured approach to internal disciplinary measures that relied heavily on Dominican friars for enforcement, an early step in systematizing heresy prosecutions within Church bureaucracy.^[14] These measures addressed pressing vacancies in leadership and threats to doctrinal uniformity, setting the administrative tone for his pontificate by centralizing authority and leveraging mendicant orders for efficiency in oversight and correction.^[14] By late September 29, 1227, the excommunication of Frederick II for crusade non-compliance further exemplified Gregory's resolve to uphold papal directives over secular delays, though this intertwined administrative enforcement with emerging conflicts.^[14]

Legal and Institutional Reforms

Compilation of the Decretals

In 1230, Pope Gregory IX commissioned Raymond of Peñafort, a Dominican friar and canonist, to compile a new, authoritative collection of papal decretals to supersede the fragmented compilations that had proliferated since Gratian's Decretum.^[15] ^[16] This effort addressed the chaos in canon law practice caused by numerous unofficial collections, such as the Compilatio Quarta, by creating a single, official corpus that integrated decisions from previous popes and councils.^[15] Raymond, assisted by a team of jurists including Johannes de Deo and Gerard de Abbeville, worked for four years to organize the material systematically.^[16] The resulting Decretales Gregorii IX, also known as the Liber Extra, was promulgated on September 5, 1234, via the papal bull Rex Pacificus, which declared it the exclusive source for future canon law judgments and abrogated all prior decretal collections.^[15] ^[2] Structured into five books—covering judgments, judgments (de iudiciis), clergy, marriage and crimes (de connubiis and de criminibus), and ecclesiastical tithes and benefices (de decimis et de electione)—it comprises approximately 1,971 chapters grouped under 185 titles.^[2] Of these, 195 chapters originated from Gregory IX himself, reflecting his direct influence on topics like heresy suppression and papal privileges, which Raymond edited for clarity and consistency.^[16] The compilation marked a pivotal reform in canon law, establishing a centralized, papal-endorsed framework that endured as the foundation of the Corpus Iuris Canonici until the 1917 Code of Canon Law.^[15] By vesting exclusive authority in this text, Gregory enhanced the uniformity and enforceability of ecclesiastical governance across Europe, facilitating its use in papal courts and universities.^[17] Glossaed editions soon followed, with Bernard of Parma's ordinary gloss becoming standard by the mid-13th century, underscoring its rapid adoption in legal scholarship.^[15]

Establishment of the Papal Inquisition

In the early 1230s, Pope Gregory IX sought to centralize and standardize the ecclesiastical response to heresy, which had proliferated despite earlier efforts like the Albigensian Crusade (1209–1229) and episcopal inquisitions mandated by Pope Lucius III's bull Ad abolendam in 1184. Local bishops often proved ineffective or biased in suppressing groups such as the Cathars, whose dualist beliefs rejected Catholic sacraments and material creation; unchecked, these heresies undermined papal authority and social order in regions like Languedoc and Lombardy. Gregory's initiative addressed chaotic secular interventions, such as mass burnings in Toulouse ordered by Count Raymond VII without judicial oversight, by instituting a papal mechanism for systematic investigation (inquisitio).^[18]^[7] The formal establishment occurred through a series of papal bulls in 1231 and 1233, marking the transition from diocesan to centralized papal control. On October 11, 1231, Gregory issued Ille humani generis, commissioning Conrad of Marburg in Germany to conduct inquisitions against heretics, emphasizing thorough examination and punishment to extirpate depravity. This was followed by Excommunicamus later in 1231, targeting Albigensian remnants by directing inquisitors to identify and prosecute unrepentant heretics, with penalties including confiscation of property and, for relapsed offenders, execution by secular arms. To ensure impartiality, Gregory delegated authority primarily to the Dominican Order, whose mendicant friars possessed theological expertise and mobility unhindered by local ties; bulls dated April 13, 20, and 22, 1233, explicitly appointed Dominicans in Tuscany, Lombardy, and Regensburg as official inquisitors of heretical depravity (inquisitores haereticae pravitatis).^[19]^[20]^[7] These decrees outlined procedures rooted in Roman canonical law, requiring inquisitors to summon suspects, gather witness testimony under oath, and allow defenses while prohibiting torture initially—though later inquisitors adapted harsher methods. Convicted heretics faced graded penalties: light penances for first-time penitents, perpetual imprisonment or property forfeiture for the obstinate, and surrender to civil authorities for burning in cases of relapse or false recantation. The system emphasized documentation and appeals to the Holy See, aiming to legitimize anti-heresy efforts against accusations of arbitrariness; by 1235, similar commissions extended to France under Robert le Bougre, demonstrating rapid implementation. This papal framework supplanted inconsistent episcopal efforts, prioritizing doctrinal purity over secular expediency, though it relied on cooperation with local rulers for enforcement.^[21]^[18]

Conflicts with Secular Authority

Struggle with Emperor Frederick II

The struggle between Pope Gregory IX and Emperor Frederick II originated from Frederick's repeated delays in fulfilling his vow to lead a crusade to the Holy Land, a pledge made under penalty of excommunication during the pontificate of Honorius III. Following Gregory's election on March 19, 1227, Frederick II departed from Brindisi on September 8, 1227, but returned to Italy on September 11 due to an epidemic afflicting his army.^[7] Gregory IX responded by excommunicating Frederick on September 29, 1227, for failing to honor the crusade commitment, viewing the delay as a direct challenge to papal authority over Christendom's spiritual and temporal order.^[22] This act intensified tensions, as Frederick's dual role as Holy Roman Emperor and King of Sicily positioned him as a rival to papal influence in Italy. Despite the excommunication, Frederick II embarked on the Sixth Crusade on June 28, 1228, negotiating a treaty with Sultan al-Kamil that restored Jerusalem, Nazareth, and Bethlehem to Christian control without major military engagement; he crowned himself King of Jerusalem on March 18, 1229.^[7] Concurrently, Gregory IX exploited Frederick's absence by launching the War of the Keys in 1228, authorizing a papal crusade against the Kingdom of Sicily to reclaim territories and funded by a tithe on church property, framing Frederick as a perjured tyrant endangering the faith.^[7] Papal forces under John of Brienne advanced into southern Italy, capturing territories, but Frederick returned in June 1229 and decisively defeated them, compelling Gregory to evacuate Rome amid Ghibelline unrest on March 23, 1228.^[7] Negotiations culminated in the Treaty of San Germano on July 20, 1230, whereby Frederick restored papal territories in the Papal States, recognized ecclesiastical privileges, and paid indemnities, leading to the lifting of his excommunication on August 28, 1230, and a temporary reconciliation that allowed joint efforts against heresies and Lombards.^[23] ^[7] Peace endured until Frederick's military successes, including the victory at Cortenuova on November 27, 1237, against the Lombard League, revived papal suspicions of imperial overreach in northern Italy and threats to the Papal States. Gregory IX excommunicated Frederick a second time on March 20, 1239, accusing him of heresy, tyranny, and undermining church liberties, which sparked renewed warfare as Frederick invaded papal territories.^[22] ^[7] In response, Gregory convoked a general council on March 31, 1241, to adjudicate imperial abuses and potentially depose Frederick, but the emperor intercepted the papal fleet near Naples, capturing key prelates including two cardinals, preventing the assembly and escalating the conflict into open hostilities across central Italy.^[7] The pope's death on August 22, 1241, amid the siege of Faenza and ongoing imperial advances, left the dispute unresolved, marking the culmination of a decade-long contest over the balance of spiritual and secular power in medieval Europe.^[7]

Relations with Other European Rulers

Gregory IX maintained diplomatic correspondence with Louis IX of France and his regent mother Blanche of Castile, dispatching Cardinal Romanus as legate in 1229 to aid in suppressing Albigensian remnants in southern France, culminating in the Synod of Toulouse that November, which enacted severe anti-heretical measures including property confiscation and perpetual imprisonment for relapsed heretics.^[7] In 1239, Gregory ordered the confiscation and examination of Talmudic texts across Christendom to counter perceived anti-Christian content, a directive that Louis IX implemented rigorously in France by 1242, burning thousands of copies in Paris.^[24] He protested Louis's issuance of the Pragmatic Sanction in 1229, which curtailed papal authority over French benefices and taxation, viewing it as an infringement on ecclesiastical independence, though no formal rupture ensued. Relations with Henry III of England were marked by papal mediation efforts alongside support for royal authority; Gregory sought persistently from 1227 onward to broker peace between Henry and Louis IX, leveraging legates and exhortations to resolve Anglo-French hostilities stemming from the Plantagenet-Capetian rivalry, though these initiatives yielded no definitive treaty during his pontificate.^[25] He backed Henry against domestic baronial opposition, particularly amid the Provisions of Oxford disputes' precursors, while appointing Otto of Montferrat as legate to England from 1237 to 1240 to oversee ecclesiastical matters and reinforce crown-papal alignment against feudal resistance.^[26] In Eastern Europe, Gregory's engagement with Béla IV of Hungary was strained by conflicting priorities over the Latin Empire of Constantinople; he urged Béla in the early 1230s to provide military aid to Latin forces against Byzantine and Bulgarian threats, but poor relations persisted due to Hungary's reluctance and Béla's focus on internal consolidation.^[27] By 1234, Gregory instructed Béla to shelter Vlach refugees fleeing Cuman overlords, emphasizing Christian charity amid ethnic migrations. As Mongol invasions devastated Hungary in 1241, Béla appealed to Gregory for counsel and aid, receiving supportive replies from the pope before his death on August 22, 1241, affirming solidarity against the pagan threat.^[28] Gregory extended missionary diplomacy northward, dispatching monks to Sweden in the 1230s to evangelize remaining pagan elements and authorizing crusading expeditions to Prussia and Livonia to expand Latin Christendom against Baltic pagans, framing these as extensions of papal universal authority. Overall, these interactions reflected Gregory's strategy of balancing confrontation with secular powers—evident in his Frederick II clashes—against pragmatic alliances to safeguard papal prerogatives and promote orthodoxy across Europe.^[29]

Doctrinal and Missionary Efforts

Suppression of Heresies

Gregory IX viewed heresies such as Catharism and Waldensianism as existential threats to Catholic orthodoxy, promoting dualistic rejection of the material world, denial of sacraments, and unauthorized lay preaching that undermined ecclesiastical authority.^[30] Catharism, entrenched in southern France (Languedoc), persisted after the Albigensian Crusade's conclusion around 1229, with estimates of thousands of adherents evading suppression.^[7] Waldensians, originating in the late 12th century, spread across northern Italy and Provence, emphasizing apostolic poverty while rejecting purgatory and indulgences.^[30] To impose systematic control, Gregory formalized the papal Inquisition in 1231 through the bull Ille humani generis, empowering Dominican friars—trained in theology and disputation—as specialized inquisitors to proactively investigate rather than merely react to denunciations.^[21] This decree mandated procedures for interrogating suspects, securing confessions via oaths and witnesses, and applying graduated penalties: salutary penance and perpetual imprisonment for first-time repentant heretics, while relapsed or obstinate offenders faced relaxatio ad brachium saeculare—handover to civil authorities for execution by fire, as secular law prescribed capital punishment for persistent heresy.^[31] Inquisitors received papal protection, including exemptions from local interference, and were instructed to confiscate heretics' property to fund operations, though funds were to support the poor or crusade efforts.^[20] In France, Gregory dispatched inquisitors like Robert le Bougre to Toulouse in 1233, targeting residual Cathar strongholds; le Bougre's tribunals resulted in over 180 executions by burning in a single 1236 auto-da-fé at Montwimer, reflecting the urgency to eradicate organized networks.^[7] In Italy, commissions addressed Waldensian and Humiliati deviations, with inquisitors verifying orthodoxy through doctrinal examinations. In Germany, Gregory authorized Conrad of Marburg in 1231 to purge alleged Luciferians and other sectarians, leading to hundreds of accusations and burnings before Conrad's assassination in 1233 prompted papal moderation to curb excesses.^[7] These efforts, blending theological rigor with legal mechanisms, curtailed heresy propagation by mid-century, though they prioritized doctrinal uniformity over procedural leniency, viewing unrepentant deviation as warranting eradication to safeguard societal cohesion under canon law.^[32]

Promotion of Crusades and Mendicant Orders

Pope Gregory IX, who had served as cardinal-protector of the Franciscans prior to his election, actively supported the mendicant orders as a counter to clerical luxury and corruption, viewing their emphasis on poverty and preaching as vital for spiritual renewal.^[33] In July 1228, he canonized Francis of Assisi, affirming the order's legitimacy and encouraging its expansion across Europe.^[34] He extended similar patronage to the Dominicans, granting them privileges that exempted them from local episcopal oversight and authorized their itinerant preaching, which facilitated rapid growth in urban centers.^[35] Gregory leveraged the mendicants' mobility and zeal for papal initiatives, commissioning Franciscans and Dominicans for diplomatic missions, such as negotiations with Eastern patriarchs, and entrusting them with inquisitorial duties against heresy in 1231.^[7] By 1235, he issued directives enabling Dominican friars to undertake missionary work in the East, integrating their evangelical efforts with broader papal goals of conversion and territorial defense.^[29] These privileges, including protections against episcopal interference reiterated in 1231–1232, positioned the orders as direct extensions of Roman authority, enhancing their influence despite tensions with secular clergy.^[36] In promoting crusades, Gregory expanded the scope beyond the Holy Land, endorsing Northern Crusades against Baltic pagans through support for the Teutonic Order's conquests and baptisms, which advanced Christian dominion in Prussia and Livonia during the 1230s.^[37] He issued the bull Rachel suum videns in 1234, urging a fresh expedition to reclaim Jerusalem after Frederick II's treaty expired, which culminated in the Barons' Crusade of 1239 involving leaders like Theobald I of Navarre and Richard of Cornwall.^[38] This campaign, preached universally across Christendom with indulgences and taxation, reflected Gregory's vision of crusading as a perpetual obligation, extending to fronts like the defense of the Latin Empire in Constantinople.^[39] The pontiff's multifaceted approach intertwined mendicant preaching with crusade recruitment; friars propagated papal calls to arms, framing participation as atonement for sins amid widespread lay enthusiasm and logistical challenges like funding via tithes.^[40] While successes were limited—such as temporary gains in the Levant—Gregory's policies institutionalized crusading as a tool for papal supremacy, mobilizing resources against both infidels and internal threats like Frederick II, whom he analogized to crusade targets.^[41]

Death and Legacy

Final Years and Death

In the closing years of his pontificate, Pope Gregory IX intensified his confrontation with Holy Roman Emperor Frederick II, excommunicating him for the third time on March 20, 1239, in response to Frederick's invasion of Sardinia, a papal fief held in trust for the church.^[14] To rally ecclesiastical support against the emperor's encroachments on papal authority in Italy, Gregory convoked a general council in Rome scheduled for Easter Sunday, March 31, 1241; however, Frederick's Pisan allies intercepted Genoese ships carrying attending prelates, capturing cardinals, bishops, and abbots off the coast of Tuscany and thereby thwarting the assembly.^[7] ^[14] Frederick subsequently mobilized his forces, advancing on Rome and establishing a blockade that confined the aged pope—nearing 100 years old and reportedly suffering from severe arthritis—to the city's malarial summer heat amid mounting distress and without resolution to the imperial threat.^[7] ^[42] Gregory IX died suddenly on August 22, 1241, in Rome, forestalling an imminent assault; contemporary records do not specify the cause of death, though the pontiff's advanced age and physical frailties amid the crisis are noted.^[14] ^[7] His passing temporarily eased the pressure on the papal city, as Frederick suspended offensive operations pending the election of a successor.^[43]

Historical Evaluations and Controversies

Historians assess Pope Gregory IX's pontificate (1227–1241) as a critical phase in the escalation of tensions between the papacy and secular empires, marked by his strategic use of excommunication and interdict against Holy Roman Emperor Frederick II.^[29] In 1227, Gregory excommunicated Frederick for delaying his crusade vow fulfillment and seizing papal territories, initiating the "War of the Keys" that invaded southern Italy.^[44] Scholars note this conflict as one of medieval Europe's most intense power struggles, with Gregory portraying Frederick as a heretic and threat to ecclesiastical authority, culminating in a 1239 crusade declaration against him.^[33] ^[45] The establishment of the papal Inquisition via the 1231 bull Excommunicamus has elicited mixed evaluations, praised by some for systematizing heresy suppression amid threats like Cathar dualism that undermined Christian sacraments and promoted ascetic extremism, yet criticized for centralizing coercive inquisitorial powers under Dominican friars, enabling procedures that included torture authorization by 1252 under Innocent IV.^[46] Gregory's 1233 expansion entrusted inquisitions to mendicant orders, bypassing local bishops, which historians argue enhanced papal oversight but sowed seeds for later abuses in heresy prosecutions across Europe.^[41] Contemporary and later Catholic chroniclers, such as those influenced by papal diplomacy, lauded Gregory's vigor in defending orthodoxy and compiling the Decretals for legal uniformity, viewing his actions as causal necessities against imperial encroachments that risked subordinating the Church.^[7] Secular-leaning assessments, however, highlight how Gregory's alliances with Lombard cities and excommunications prolonged Italian instability, interpreting his policies as aggressive assertions of theocratic supremacy rather than defensive measures.^[4] Empirical analysis of Frederick's repeated crusade delays, self-coronations, and papal election interferences substantiates Gregory's causal rationale for conflict, though the resulting warfare diverted resources from eastern Crusades.^[47] Controversies persist over Gregory's bull Vox in Rama (1233), which detailed alleged Cathar rituals involving Luciferian worship and animal intermediaries, fueling debates on whether it exaggerated diabolical elements to justify inquisitorial zeal, though evidence from heresy trials confirms ritualistic practices among suppressed groups.^[48] Modern critiques from biased academic narratives often frame these efforts as proto-totalitarian, overlooking the empirical threat heresies posed to feudal social cohesion via rejection of oaths and property norms, yet Gregory's framework undeniably institutionalized mechanisms for doctrinal enforcement that outlasted his reign.^[49]

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25 In response, Pope Gregory IX again dispatched a letter, on this occasion to the. Swedes calling for them to engage in a crusade against the Yam.26 This ...
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<i>The Barons' Crusade: A Call to Arms and Its Consequences</i ...
In 1234 Pope Gregory IX enhanced and expanded the developments that his predecessor had initiated when he called for a new crusading expedition to the Holy Land ...<|separator|>
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The Barons' Crusade - University of Pennsylvania Press
30-day returnsIn December 1235, Pope Gregory IX altered the mission of a crusade he had begun to preach the year before. Instead of calling for Christian magnates to go on ...
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[PDF] 4. Gregory IX and the Crusades
Abstract. The pontificate of Gregory IX saw an astonishing expansion of the range of crusading activities, with multiple campaigns on many fronts annually.
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[PDF] The Transition of Papal Politicization as Demonstrated through Pope ...
Apr 5, 2018 · Pope Gregory IX served as pope from 1227-1241. His pontificate is most notably marked by his tumultuous relationship with Frederick II ...Missing: key achievements
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Gregory IX | Research Starters - EBSCO
In addition to his political challenges, Gregory IX made notable contributions to the development of canon law and the establishment of the Inquisition. He also ...
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Pope Gregory IX dies 1241 | Professor Moriarty
Gregory IX died in 1241 as Frederick was preparing to attack Rome. During his papacy Gregory cannonized St Dominic, St Francis of Assisi, St Anthony of Padua, ...
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[PDF] The crusade against Frederick II a neglected piece of evidence
... War of the Keys of 1228-30 and some northern Italian episodes from the 1230s. The so-called War of the Keys was the first crisis between Frederick and Gregory.
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(PDF) Frederick II: Anti-Papal or Papal Manipulator? A study into the ...
This led to the great conflict between Frederick II and Pope Gregory IX during the latter‟s pontificate in the thirteenth century.
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Papal Inquisition | Research Starters - EBSCO
In 1233, Pope Gregory IX issued two papal bulls establishing the papal Inquisition, which in theory was to be implemented in cooperation with the bishops ...
[47]
Pope Gregory IX (1227-1241)
Pope Gregory IX (1227-1241) Power and Authority. Search within full text. Access. Edited by Damian J. Smith, Saint Louis University, Missouri.Missing: administrative | Show results with:administrative
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Did Pope Gregory IX Order A Medieval Purge of Black Cats That ...
Feb 25, 2020 · First, consider the dates: Pope Gregory IX's papal bull was issued between 1232 and 1234. The Black Death came in 1347. I suppose it's possible ...Missing: circumstances | Show results with:circumstances
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Gregory IX and the Greek East (Chapter 5)
Nov 14, 2023 · This chapter examines Pope Gregory IX's involvement in the Greek East, which revolved around three interconnected issues: crusade, Church Union, ...Missing: evaluations | Show results with:evaluations