There is much uncertainty and confusion in the names of the Bishops who succeeded Cyril on the three occasions of his being deposed.  His successor in 357 is said by Jerome to have been a certain Eutychius, probably the same who was afterwards excommunicated at Seleucia (Dict. Chr. Biogr. Eutychius 13).  The subject is discussed at length by Touttée (Diss. I. vii.).