In Greek mythology, Iphicles (also spelled Iphikles) was the mortal twin brother of the hero Heracles, born to the mortal woman Alcmene and her husband Amphitryon, the king of Thebes, while Heracles was sired by Zeus in the same pregnancy, making the brothers half-siblings separated by one night.[1][2] As infants, the twins survived an assassination attempt by serpents sent by the goddess Hera, who despised Heracles as an illegitimate son of her husband Zeus; Heracles strangled the creatures, demonstrating his superhuman strength from birth.[1]Iphicles participated in notable heroic exploits, including the hunt for the Calydonian boar, a monstrous creature ravaging the region of Calydon, where he joined other heroes such as Meleager and Atalanta.[3] He fathered the hero Iolaus with Automedusa, daughter of Alcathous, who later became Heracles' loyal charioteer and companion in several labors, and Iphicles himself married the younger daughter of King Creon of Thebes.[1] According to one tradition, Iphicles met his end in battle against the sons of Hippocoon, the usurper king of Sparta, fighting alongside Heracles and Cepheus; his death deeply grieved his brother, who avenged him by slaying the Hippocoontids and restoring the rightful king Tyndareus.[1] Though overshadowed by Heracles' fame, Iphicles was revered as a minor hero in Peloponnesian traditions, with a cult honoring him in Pheneus.[4] His descendant Iolaus was worshipped as a hero at Thebes.[5]
Family and Origins
Parentage and Birth
In Greek mythology, Iphicles was the son of the mortal king Amphitryon and his wife Alcmene, daughter of Electryon, king of Mycenae.[1] Amphitryon, a grandson of Perseus through his son Alcaeus, accidentally killed Electryon while attempting to recover stolen cattle for him on behalf of Alcmene's family.[1] This incident led to Amphitryon's banishment by Sthenelus, who seized the thrones of Mycenae and Tiryns, prompting him and Alcmene—along with her brother Licymnius—to flee to Thebes, where they were hosted by Creon, king of Thebes.[1]The circumstances of Iphicles' birth are tied to the divine conception of his twin brother Heracles. According to ancient accounts, Zeus, desiring Alcmene, disguised himself as Amphitryon and visited her, prolonging that night to three times its usual length before Amphitryon himself returned from war and lay with her.[1] As a result, Alcmene gave birth to twins on the same night in Thebes: Heracles, sired by Zeus and thus a demigod, and Iphicles, the mortal offspring of Amphitryon, with Heracles born one night earlier.[2][1] This dual parentage marked Iphicles as fully human in contrast to Heracles' divine heritage, though the brothers shared the same mother and were raised together.[2]Hesiod describes Alcmene as a woman of renowned beauty and stature, deeply devoted to her husband, who bore these "offspring distinct, this one of a mortal father, that one of him that holds the aegis," highlighting the mythological emphasis on their differing paternities from the outset.[2] The family's settlement in Thebes provided the setting for the twins' early life, integrating Alcmene's Argive royallineage into the Theban context through marriage and exile.[1]
Siblings and Early Childhood
Iphicles had a full sister named Laonome, born to Alcmene and Amphitryon, who later married Euphemus, a helmsman and member of the Argonautic expedition.[6]Following the accidental slaying of Electryon, king of Mycenae, Amphitryon and Alcmene fled into exile with their household, seeking refuge in Thebes where Creon, the ruler, granted them purification and sanctuary.[1] There, the family established itself in the Boeotian city, with Amphitryon assuming a prominent role as a warrior and leader among the Thebans, leveraging his martial prowess from prior campaigns against the Taphians.[1]As the mortal son of a warrior household, Iphicles was raised as a prince in Thebes alongside his divine half-brother Heracles, sharing in the privileges and expectations of their noble lineage despite his human origins.[1]Amphitryon personally oversaw their education, training the twins in the heroic arts such as the use of weapons, chariot driving, and physical combat to prepare them for valorous deeds. This upbringing emphasized discipline and martial skill, though ancient accounts portray Iphicles as capable yet overshadowed by his sibling's exceptional strength, reflecting his inherently mortal limitations.The enduring twin bond between Iphicles and Heracles underpinned their shared family dynamics, fostering loyalty amid the contrasts of their destinies.[1]
One of the most renowned early incidents in the mythological lives of Iphicles and his twin brother Heracles occurred during their infancy, when the goddess Hera, enraged by Heracles' divine conception, dispatched two serpents to slay the children in their shared cradle. As the snakes slithered into the chamber at midnight, their eyes gleaming with fire and venom dripping from their fangs, the eight- or ten-month-old Heracles awoke and grasped each by the throat, strangling them effortlessly with both hands. In stark contrast, Iphicles, terrified by the sight of the creatures rearing above the cradle, cried out in fear and recoiled, highlighting the brothers' divergent natures from the outset—Heracles' innate heroism against Iphicles' mortal vulnerability.[1][7]The disturbance awakened their mother Alcmene and father Amphitryon, who rushed to the scene amid the clamor, finding Heracles laughing triumphantly with the lifeless serpents in his grasp while Iphicles trembled beside him. Alcmene comforted her frightened son as Amphitryon marveled at the feat, and the seer Tiresias was promptly summoned to interpret the event. Tiresias inspected the dead snakes, discerned Heracles' divine paternity through Zeus, and prophesied the infant's future as a great hero who would vanquish monsters, lions, and giants, ultimately ascending to Olympus; by implication, Iphicles' terror and survival marked his path as a mere mortal, forever in his brother's shadow.[7][8]As a firsthand witness to Heracles' extraordinary strength, Iphicles' role in this episode underscored his supportive yet perpetually overshadowed position within the family, serving as a poignant foil that emphasized the twins' contrasting destinies without diminishing his own humanity. The incident, set against the backdrop of the family's residence in Thebes following their earlier relocation, not only confirmed Heracles' godlike prowess but also intensified Hera's enmity, foreshadowing further trials.[1][7]
Participation in Heroic Expeditions
Iphicles participated in the renowned Calydonian Boar hunt, a major collective endeavor that assembled many of Greece's greatest heroes to confront a devastating beast sent by Artemis. The goddess had unleashed the massive boar upon the kingdom of Calydon as retribution against King Oeneus for failing to include her in a ritual sacrifice to the gods following a bountiful harvest. Oeneus' son Meleager organized the hunt, summoning warriors from across the Greek world to track and slay the creature ravaging the land. Among the participants were Jason, son of Aeson; Theseus, son of Aegeus; Peleus and Telamon, sons of Aeacus; Pirithous, son of Ixion; and Atalanta, daughter of Schoeneus, along with the sons of Thestius and others. Pseudo-Apollodorus lists Iphicles explicitly as one of the hunters, noting his presence alongside these luminaries as they pursued the boar through dense forests and engaged it in fierce combat.[3]The hunt culminated in a dramatic confrontation where the heroes wounded the boar repeatedly before Meleager delivered the fatal blow with his spear. Iphicles, as a Theban warrior and half-brother to Heracles, contributed to the group's efforts in encircling and weakening the monster, demonstrating his prowess in coordinated heroic action. This event not only relieved Calydon from destruction but also solidified Iphicles' reputation as a reliable ally in ensemble myths, where he stood shoulder-to-shoulder with demigods and princes without overshadowing the central figures. The success of the hunt, however, led to internal strife over the division of the boar's hide and tusks, though Iphicles is not noted in the ensuing conflicts among the participants.Iphicles also joined the Argonauts on their quest for the Golden Fleece, sailing with Jason from Iolcus to Colchis aboard the ship Argo. Assembled from heroes across Greece, the expedition included figures such as Orpheus, the Dioscuri (Castor and Pollux), Peleus, Telamon, and Heracles himself, though Heracles departed early during the voyage. Listed among the crew in Pseudo-Apollodorus, Iphicles represented Thebes in this perilous journey, facing challenges like the Clashing Rocks and encounters with harpies and dragons, contributing to the successful retrieval of the fleece that restored Jason's throne. His involvement in the Argo's voyage further exemplified his role in collaborative heroic enterprises, connecting him to the broader network of Greek legendary figures.[3]Iphicles' involvement in these expeditions underscores his broader mythological portrayal as a steadfast warrior who thrived in collaborative ventures with peers like Jason and Theseus, rather than solitary quests. Such gatherings highlighted the interconnected web of heroic exploits in Greek lore, where Iphicles served as a mortal counterpoint to divine figures, contributing to victories that shaped regional legends.
Later Life and Legacy
Battles and Death
Iphicles participated in Heracles' campaign against Hippocoon, the usurper king of Sparta, to avenge the death of Oeonus, the son of Licymnius, who had been killed by Hippocoon's sons; this conflict also stemmed from their support for Neleus in denying refuge to Heracles after his earlier misfortunes.[1] In the ensuing battle at Lacedaemon, Iphicles fought alongside Heracles and allies such as Cepheus and his sons, but he perished amid the fighting that resulted in the overthrow and death of Hippocoon and his offspring.[1] This engagement followed Iphicles' involvement in prior expeditions.[1]An alternative tradition recounts Iphicles' death during Heracles' war against King Augeas of Elis and the Eleans, waged to enforce payment for the river-diverting labor of the fifth Herculean task.[4] In the initial clash, Iphicles was severely wounded by the Molionidae—twin warriors Eurytus and Cteatus, sons of Actor (named after their mother Moline)—who served as champions of the Eleans.[4] Fainting from his injuries, he was carried to Pheneus in Arcadia, where he was nursed by locals Buphagus and Promne but ultimately succumbed to his wounds.[4]Iphicles was buried in Pheneus, where a tomb on a nearby hill marked his resting place, and the Pheneatians established a heroum in his honor, continuing to offer hero sacrifices there into historical times.[4] These accounts underscore Iphicles' loyal role as Heracles' steadfast companion in vendettas against unjust rulers, highlighting his mortal sacrifice in bolstering his divine half-brother's heroic quests, though sources vary on the precise circumstances of his demise.[1][4]
Descendants
Iphicles fathered Iolaus with Automedusa, the daughter of Alcathous of Megara.[1]Iolaus grew to become a renowned hero in his own right, serving as Heracles' faithful charioteer and companion during several of the labors, most notably assisting in the slaying of the Lernaean Hydra by cauterizing the stumps of its severed heads to prevent regrowth.[1] After Heracles' bout of madness induced by Hera, in which he killed his own children and those of Iphicles, Heracles entrusted his former wife Megara to Iolaus, though no offspring from this union are recorded.[1]In some accounts, Iphicles wed Pyrrha, the younger daughter of Creon of Thebes, by whom he had two children who were tragically slain by Heracles during the same episode of Hera-induced frenzy.[9] These unnamed offspring represent the limited extension of Iphicles' mortal lineage, overshadowed by the divine interventions that marked his family's tragic intersections with Heracles' fate.Iolaus himself achieved a form of immortality through divine favor. In later tradition, as an aged man, he was restored to youthful vigor by Hebe, the goddess of youth and wife of Heracles, at the hero's request, allowing him to resume heroic endeavors with renewed vitality.[10] Furthermore, Iolaus led an expedition of Thebans, Athenians, and Thespians to Sardinia, where his followers established settlements; places named Iolaia persisted there into the Roman era, with locals continuing to worship him as a hero.[11] This colonial legacy underscores Iolaus' enduring influence, connecting Theban royalty to distant Mediterranean outposts without further named descendants in surviving accounts.