Little is known of Şirin’s early life. The Ottoman inscription (vakfiye) describes her as Hātun binti Abdullah (Daughter of Abdullah) which means that she was a harem concubine converted to Islam or her father was possibly a Christian who converted to Islam.[1][2][3] Bayezid married her in 1464 at Amasya.[1] When Bayezid was still a şehzade ("Ottoman prince") and the governor of Amasya, she gave birth to Bayezid's first son, Şehzade Abdullah in 1465 and later to a daughter Aynışah Hatun.[4] [5]