Devlet Hatun
Devlet Hatun (Ottoman Turkish: Devlet Hātûn; died c. 1422) was a consort of Ottoman Sultan Bayezid I and the mother of his successor, Mehmed I, who reunified the fragmented Ottoman territories after the Battle of Ankara in 1402.[1]
Born as a princess of the Germiyanid beylik in western Anatolia, she was the daughter of Süleyman Şah, the ruler of Germiyan, and married Bayezid I as part of alliances between the rising Ottoman dynasty and neighboring Turkish principalities.[2]
Renowned for her piety—which earned her the epithet Çelebi (meaning "noble" or "gentlemanly" in Turkish)—Devlet Hatun established charitable foundations (vakıf), including endowments that supported religious and social institutions in Bursa, reflecting her influence during and after her son's reign from 1413 to 1421.[2][1]