Abū Manṣūr Nizār al-Muṣṭafá li-Dīn’il-Lāh was the founder of the Nizāri branch of Ismā‘ilī Shia Islam. Following the death of his father, Al-Mustansir Billah, he was deposed by his brother, Ahmad al-Musta‘lī but his son, Ali al-Hādī ibn Nizār, escaped to Alamūt and took refuge with believers there, thereby continuing the Imāmate. Read More
