Abdelmesias an Egyptian who became a Coptic monk and priest of the Monastery of St. Macarius in the desert. He was procurator and orator of Gabriel, patriarch of Alexandria. His publications are, A Deputation of the Patriarch to Pope Clement VIII: — and a Profession of Faith (made at Rome, Jan. 14, 1595), given in Baronius, vol. 6, at the end. See Landon, Eccles. Dict. s.v.