The Ainsarii were a sect of the Ismaili Assassins who survived the destruction of the stronghold of Alamut. An Ismaili sect of the Assassins, who continued to exist after the stronghold of that society was destroyed. They held secret meetings for receptions and possessed signs, words, and a catechism. The Ainsarii are discussed in The Asian Mystery Illustrated in the Ansaireeh or Nusairis of Syria by Samuel Lyde, 1860.