Sultan Hassan | Sultan of Egypt | Mameluke Period An-Naser Badr al-Din Hasan ibn Muhammad ibn Qalawun (1334/35–17 March 1361), better known as an-Naser Hassan, was the Mamluk sultan of Egypt, and the seventh son of an-Naser Muhammad Ibn Qalawun to hold office, reigning twice in 1347–1351 and 1354–1361. He assumed power after his brother