was a deacon, deposed A.D. 592 by his bishop, Adrian, for malversation of the goods of the Church. Cosmas and aother deposed deacon accused Adrian, by way of revenge, to the emperor Maurice. Maurice, according to the canons, sent the case to John, bishop of Larissa, Adrian's metropolitan, who condemned him. Adrian appealed to Maurice, and was acquitted. The case finally came before Gregory the Great (Gregory, Epp. 3:7; in Migne, Patrol. Lat. 77:609, 629; Ceillier, 11:490).