/ 94 DESTRUCTION OF THE GREEK EMPIRE of resisting the enemy of Christendom. His influence fell far short of his desire. The Hungarian king was reported to have misappropriated the money he had been allowed to acquire from the Church, and the great fleet which the Genoese had collected for the purpose of attacking the Turks endeavoured to depose John in favour of his son Andronicus. Difficulties John himself was in serious difficulties with the Ottoman with Sultan sultan, Murad. These two sovereigns were now, indeed, the two great actors on the stage during several years, but the character of Murad dominated over that of the common- place John. To avoid possible treachery, the Christian emperor, who was not trusted by Murad, was in 1374 compelled with his son Manuel to follow the sultan in a campaign. During his absence he entrusted the govern- ment to Andronicus, his eldest son. Thereupon an accident occurred which seems greatly to have impressed con- temporaries. Andronicus entered into an arrangement with the son of Murad by which the two swore to be friends and to act together, when one should become emperor and the other sultan. A definite arrangement may well be doubted and possibly all that passed was due to the impulsiveness of boyish friendship without any likelihood of practical result. Murad, however, when he heard of the agreement, blinded his son, insisted that John should treat Andronicus in the same manner, and threatened war if he did not comply. According to Ducas, John blinded not only Andronicus, but also his infant son. 1 Probably the sight of one eye only was destroyed. Andronicus was imprisoned in the Tower of Anemas with his wife and son, and John's younger son, Manuel, was crowned as co-emperor. Two years afterwards Andronicus escaped to the Genoese in Galata. With their aid he succeeded in entering Constantinople, proclaimed himself emperor, and shut up his father in the same prison in which he had himself been confined. Two years afterwards the prisoner escaped to Scutari, and Andronicus had the sense to avoid civil war by 1 Ducas, xii. Chalcondylas makes a similar statement (i. 45) ; Canale says that a Genoese doctor restored sight to Andronicus.
