From his life written by Daniel, a monk of Raithu, soon after his death,
and from his own works. See Bulteau, Hist Monast. d'Orient, and
d'Andilly, or rather his nephew, Le Maitre, in his life prefixed to the
French translation of his works. See also Jos. Assemani, in Cal. Univ.
ad 30 Martii, t. 6, p. 213.