John V Palaiologos, Byzantine emperor (born 1332)

John V Palaiologos

Byzantine emperor (1332–1391)

John V Palaiologos or Palaeologus was Byzantine emperor from 1341 to 1391, with interruptions. His long reign was marked by constant civil war, the spread of the Black Death and several military defeats to the Ottoman Turks, who rose as the dominant power of the region.