Murad I

   Ottoman sultan (q.v.) from 1362-1389. Under Murad the Ottomans (q.v.) continued their expansion into the Balkan Peninsula (q.v.), conquering Adrianople (q.v.) in 1369, and making John V Palaiologos (q.v.) his vassal following the battle of Marica (1371). Gallipolis (q.v.) was returned to the Ottomans in 1377 for Murad I's support of the rebellion of Andronikos IV (q.v.). Manuel II (q.v.), co-emperor from 1373, and his brother Theodore I Palaiologos of Mistra (qq.v.), were forced to make their submission to Murad I in 1387. Murad was assassinated at the moment of his great victory at the battle of Kosovo Polje on 15 June 1389, a victory that made Serbia (q.v.) an Ottoman vassal state. He was succeeded by Bayezid I (q.v.).