Bajazet I. Born in 1347. Emperor of the Turks, son of Murad I, whom he succeeded in 1389. Began his reign with a series of conquests, crossing the Danube, and finally defeating Sigismund of Hungary and his army of 100,000 men. Ill health alone prevented his crossing the Alps, and he next turned to the conquest of Constantinople. Bought off for the moment, he was diverted from the ultimate accomplishment of his design by war with Tamberlaine the Great, by whom, in 1402, he was totally defeated and taken prisoner, dying shortly afterwards in 1403.