In 570, Antoninus Placentius wrote that in the valleys of Mount Sinai there was a monastery in which the monks spoke Greek, Latin, Syriac, Egyptian and Bessian. The origin of the monasteries is explained in a mediaeval hagiography written by Simeon Metaphrastes, in Vita Sancti Theodosii Coenobiarchae in which he wrote that Saint Theodosius founded on the shore of the Dead Sea a monastery with four churches, in each being spoken a different language, among which Bessan was found. The place where the monasteries were founded was called Cutila, which may be a Thracian name.