شجر الدر
In medieval Egypt, Shajar al-Durr, a former slave of Turkic origin, ascended the throne in 1250. Although several sources assert that she took the title of sultana, "The Cambridge History of Islam" disputes the claim, stating that "a feminine form, sultana, does not exist in Arabic: the title "sulṭān" appears on Shajar al-Durr's only extant coin."