, a monk of the order of St. Basil, in the fourteenth century, was in 1339 sent by the Greek emperor Andronicus the younger, as ambassador to Philip king of France, and Robert king t)f Sicily, to solicit assistance against the Mahometan power; and as there was little prospect that this would be granted without a previous union between the Greek and Latin churches, he was also instructed to treat of this measure. These two princes gave him letters to pope Benedict XII. to whom he proposed the assembling of a general council; but as he desired, in the mean time, that a reinforcement might be sent to the Greek emperor, the pope replied that the procession of the Holy Ghost was a point already settled, and therefore did not require a new council, and as for the assistance required, it could not be granted unless the Greek church would shew more sincerity in its wishes for a junction. Barlaam, at his return from Constantinople, had a controversy with the monks called Quietists, who were charged with reviving the Messalian heterodoxy. These monks pretended to see the light which appeared upon Mount Tabor at our Saviour’s transfiguration. They asserted this light to be uncreated and incorruptible, though not part of the divine essence | and held other strange opinions, which induced Barlaani to accuse Palamas and his disciples of this sect, to the emperor and to the patriarch of Constantinople, on which a council was called in that city in 1340, but BarJaain failed in maintaining his charges, and was himself censured. Barlaam beinp; thus condemned in the east, retired to the west, joined himself to the Latins, and was made bishop of Hieracium or Gerace in Calabria, where he died about 1348. As he changed from the Greeks to the Latins, his writings will be found to be both for and against the latter. Against them he wrote a treatise on the pope’s primacy, printed first in Gr. and Lat. at Oxford, 1592, 4to, by Lloyd, and afterwards at Hainault, 1608, 8vo, with notes by Sahnasius, who again reprinted it, along with his own treatise of the primacy of the pope, Amsterdam, 1645. Barlaam wrote also a treatise of the procession of the Holy Ghost, containing eighteen articles, of which Ailatius gives the titles. For the Latins he wrote a discourse of the union of the two churches, and five letters, published by Bzovius, Canisius, and in the Bibl. Patrnm separately also at Strasburgh, 1572; and a treatise on arithmetic and algebra from his pen was published at Paris, 1600.1


Moreri. —Dupin.Mosheim. —Cave, vol. II. —Saxii Onomasticon.