Konstantinos 45 was bishop of Iouliopolis in Galatia Prima; in 787 he attended the Second Council of Nikaia (the Seventh Ecumenical Council) and was probably present at all eight sessions, from 24 September to 23 November 787: Mansi XII 995-XIII 486. In the lists of those present at the first and seventh sessions he is styled Κωνσταντίνου ἐπισκόπου Ἰουλιουπόλεως or similar: Mansi XII 995, XIII 368 (the Greek version, at XIII 368, calls him Κώνστα, i.e. Constans, but the Latin version, at XIII 367, has the name "Constantino"). Elsewhere he is styled Κωνσταντῖνος ὁ ὁσιώτατος ἐπίσκοπος Ἰουλιουπόλεως or similar: Mansi XII 1099, XIII 144 (his see is spelled Ἰλιουπόλεως), XIII 388 (the name Κώνστας/"Constans" appears in the Latin version at XIII 387 as well as in the Greek at XIII 388). At the second session he supported the traditional veneration of icons as described in statements from pope Hadrian I (Hadrianos 1) and condemned iconoclasts: Mansi XII 1099. At the fourth session he subscribed the statements read out from the Fathers in support of the veneration of icons: Mansi XIII 144. At the seventh session he subscribed the statement of the faith adopted by the Council: Mansi XII 388.

(Publishable link for this person: )