The order of Assassins was founded in Persia in 1090 by Hassan-i Sabbah. The list of Assassins associated with the order include the following: al-Hakim al-Munajjim, the physician-astrologer (d. 1103) Abu Tahir al-Sa’igh, the goldsmith (d. 1113) Bahram al-Da'i, nephew of al-Asterbadi (d. 1127) Rashid ad-Din Sinan (d. 1193) Sarim al-Din Mubarak, son-in-law of Baibars al-Bunduqdar, sultan of Egypt (fl. 1271)
Others Dihdar Bu-Ali (fl. 1090) Mu'ayyad al-Din Muzaffar (fl. 1096) Sharaf al-Din Muhammad, son of Mu'ayyad al-Din Muzaffar (after 1096) Abu Ibrahim al-Asterbadi (d. 1101) Ahmad ibn 'Abd al-Malik ibn Attāsh (d. after 1105) Ismail al-'Ajami (d. 1130) Ali ibn-Wafa (d. 1149) Abu-Muhammad (fl. 1162) Khwaja Ali ibn Mas'ud (fl. 1162) Abu Mansur, nephew of Abu-Muhammad (fl. 1162) Nasr al-'Ajami (fl. 1193) Kamāl ad-Din al-Hasan (fl. after 1221) Majd ad-Din (d. after 1227) Sirāj ad-Din Muzaffa ibn al-Husain (fl. 1227–1238) Taj ad-Din Abu'l-Futūh ibn Muhammad (d. after 1249) Radi ad-Din Abu'l-Ma'āli (fl. 1256) Najm ad-Din (d. 1274) Shams al-Din, son of Najm ad-Din (fl. 1274). Note that this list does not include the da'i and Imams that ruled the Nizari Isma'ili State from 1090 to 1255, beginning with Hassan-i Sabbah.
See also List of Isma'ili missionaries List of Isma'ili imams
References
Baldwin, Marshall W., and Setton, Kenneth M. (1969), A History of the Crusades: Volume One, The First Hundred Years, Chapter IV: The Ismailites and the Assassins, The University of Wisconsin Press, Madison. Lewis, Bernard (2003). The Assassins: A Radical Sect in Islam. Perseus Books Group, London.