Nurbanu Sultan
Afife Nûr-Banû Sultâna or Devletlu İsmetlu Afife Nûr-Banû Vâlide Sultân Aliyyetü'ş-Şân Hazretleri (Daulatlu Ismatlu Afife Nûr-Banû Validā Sultâna 'Aliyāt ûsh-Shân Hazrātlāri) (née Olivia / Cecilia Venier-Baffo or Rachel) or Kale Kartanou (ca. 1525 – 7 December 1583) was either a Venetian of noble birth or a Spanish Jew. She was the mother of Sultan Murad III of the Ottoman Empire and his de facto co-regent as the Valide Sultan for nine years from 1574 until 1583.
Read more about Nurbanu Sultan: Biographical Theories, Afîfe Nûr-Banû As A Sultâna, Sources