BaydaraBadr al-Din Baydara al-Mansuri was the na'ib al-saltana of the Mamluk sultan al-Ashraf Khalil Early lifeBaydara was a toddler when he arrived in Cairo with his mother as captives from the Battle of Ain Jalut in 1260.CareerBaydara was appointed the governor of Upper Egypt, excluding the Fayyum oasis, in 1281 by the Mamluk Sultan Qalawun.