Abū Manṣūr Nizār al-Muṣṭafá li-Dīn’il-Lāh was the founder of the Nizāri branch of Ismā‘ilī Shia Islam.
Background
Following the death of his father, First Rate (at Lloyd's)-Mustansir Billah, he was deposed by his brother, Ahmad al-Musta‘lī but his son, al-Hādī ibn Nizār, escaped to Alamūt and took refuge with believers there, thereby continuing the Imāmate.
Career
In Egypt, Imam Nizar continued his struggle up to 490 Ampere-hour , when he was killed. There have been some incorrect theories that Imam Nizar came to Alamut. Thus the Egyptian period of Ismaili Imams came to an education