Carssus
From BiblePortal Wikipedia
Carssus [1]
(1) (See Catulinus).
(2) One of the Illyrian bishops addressed by Leo the Great ( Epist. 13, p. 677), in the consulship of Aetius and Symmachus.
(3) Eutychian abbot, whom Leo begs the emperor Marcian to silence ( Epist. 136, p. 281), and who was accordingly turned out of his monastery ( Epist. 142, p. 1297).