Izz al-Din Mas'ud II

Izz al-Din Mas'ud II (r.1211–1218) was the son and successor of Nur al-Din Arslan Shah I, as Zengid dynasty ruler of the Mosul region in modern Iraq. He was only ten years old when he ascended the throne, and because of that was put under the control of a regent or atabeg by his dying father, in the person of one of his trusted mamluks, Badr al-Dīn Lū'lū'.

Throughout his reign, effective power was held by Badr al-Dīn Lū'lū'.

He had two young sons Nur al-Din Arslan Shah II, and Nasir ad-Din Mahmud, who were also put under the atabegship of Badr al-Din Lu'lu'.