Gülçiçek Hatun

Gülçiçek Hatun was a Greek woman from Bithynia who entered the Ottoman palace and became a concubine of Sultan Murad I around 1359. She bore him the future Sultan Bayezid I, later called Yıldırım.

As the mother of a sultan she founded a pious establishment whose revenues paid for a mosque at Bursa, the first built by an Ottoman concubine, and for her own tomb. She died around 1400 and was buried in that tomb.