, emp.eror of Constantinople, and a celebrated Byzantine historian,
, emp.eror of Constantinople, and a celebrated Byzantine historian, was born at Constantinople about the year 1295, of a very ancient and noble family; his father being governor of Peloponnesus, and his mother a near relation of the emperor’s. He was bred to letters and to arms, and afterwards to the highest offices of statej in which he acquitted himself in such a manner as to gain the favour of both court and city. He was made prelect of the bedchamber to the emperor Andronicus the elder, but lost his favour about 1320, by addicting himself too much to the interest of his grandson Andronicus. In 1328, when the grandson seized the empire, he loaded Cantacuzenus with wealth and honours; made him generalissimo of his forces; did nothing without consulting him; and fain would have joined him with himself in the government, which Cantacuzenus refused. In 1341 Andronicus died, and left to Cantacuzenus the care of the empire, till his son John Paleologus, who was then but nine years of age, should be fit to take it upon himself: which trust he discharged very diligently and faithfully. But the empress dowager, the patriarch of Constantinople, and some of the nobles, soon growing jealous and envious of Cantacuzenus, formed a party against him, and declared him a traitor: upon which a great portion of the nobility and army besought him to take the empire upon himself, and accordingly he was crowned at Hadrianopolis in May 1342. A civil war raged for five years, and Cantacuzenus was conqueror, who, however, came to the following terms of peace with John Paleologus; viz. that himself should be crowned, and that John should he a partner uith him in the empire, though not upon an equal footing, till he should arrive at years sufficient. He gave him also his daughter Helen, to whom he had formerly been engaged, for a wife; and the nuptials were celebrated in May 1347. But suspicions and enmities soon arising between the new emperors, the war broke out again, and lasted till John took Constantinople in 1355. A few days after that city was taken, Cantacuzenus, unwilling to continue a civil war any longer, abdicated his share of the empire, and retired to a monastery, where he took the habit of a monk, with the new name of Joasaphus, and spent the remainder of his life in study and writing. His wife retired also at the same time to a nunnery, where she changed her own name Irene for the new one of Eugenia.