SIMEON, archbishop of THESSALONICA. — Byzantine theologian, polemicist, and liturgist; d. at Thessalonica in March 1429. Little is known of his life beyond that after being a monk he succeeded Metropolitan GABRIEL about 1418 and died six months before the fall of Thessalonica to the Turks.
Among his writings the principal ones are a dialogue against all heresies and a treatise on the Holy Rites, i.e. the Sacraments. To these must be added the pamphlets On the Divine Temple, Exposition of the Creed, Explanation of the Constantinopolitan Creed, Treatise on the Priesthood, 83 replies addressed to GABRIEL, metropolitan of the Pentapolis, and some poems and prayers. S. is to be numbered among the great Byzantine writers. Speaking generally, his trinitarian, christological, and sacramental doctrine is profound and sound, save in those points where the polemicist has overridden the theologian. For S. is an ardent Palamite, fought against the Latins, and together with NICHOLAS CABASILAS is the greatest exponent of the Byzantine view on the epiclesis as the form of the Most Holy Eucharist.