archidiaconus, lived about 1276, patronized the union of the Greek and Latin Churches, died in exile in Bithynia, and wrote two treatises "De Ecclesiastica Unione Latinorum et Graecorum," and "De Processione Spiritus Sancti," both, in the Greek text with a Latin translation, contained in Leo Allatius, "Graecia Orthodoxa." (Cave, Hist. Lit. i. p. 738; Fabric. Bibl. Graec. xi. p. 272, 397.)