Mehmed I
Devlet Hatun was the twelfth and last wife of Ottoman Sultan Bayezid I and the mother of Bayezid's successor, Mehmed I. Her name in her "vakfîyya" is registered as Daulât bint-i Abd'Allah. This implies that the mother of Mehmed I was of non-Turkish origin. Although the sign at her tomb (see image in next section) says that "Devlet" was the daughter of a Germiyanid (i.e. Turkic) prince, she was ethnically of non-Turkish origin. Since both Devlet Hâtun and Devletşah Hatun died in 1414, she is frequently confused with Devletşâh Hâtun, the daughter of Süleyman of Germiyan.