1170 - Great Mosque of al-Nuri construction begins.[3] 1182 - Mosul besieged by forces of Saladin during rule of Izz ad-Din Mas'ud.[1] 1185 - Mosul again besieged by forces of Saladin.[1] 1224 - Mosul taken by forces of Badr al-Din Lu'lu'.[3] 1239 - Mashhad Imam Yahya ibn al-Qasim (mausoleum) built near city.[3] 1248 - Imam Awn al-Din shrine built.[4] 1258 - Mosul sacked by forces of Hulagu Khan.[5] 1262 - July: Mosul taken by Mongol forces.[6]