sentences:  Nizar escaped Cairo, rebelled and seized Alexandria, where he reigned as caliph with the regnal name al-Muṣṭafā li-Dīn Allāh ().In late 1095 he was defeated and taken prisoner to Cairo, where he was killed by immurement.Many Isma'ilis, especially in Persia, who rejected al-Musta'li's imamate and considered Nizar as the rightful imam, split off from the Fatimid regime and founded the Nizari branch of Isma'ilism, with their own line of imams who claimed descent from Nizar that continues to this day.