Shajar al-Durr, also Shajarat al-Durr, whose royal name was al-Malika ʿAṣmat ad-Dīn ʾUmm-Khalīl Shajar ad-Durr, was a ruler of Egypt. She was the wife of As-Salih Ayyub, and later of Izz al-Din Aybak, the first sultan of the Mamluk Bahri dynasty. Wikipedia