John VI Kantakouzenos, Cantacuzenus, or Cantacuzene (Greek: Ἰωάννης ΣΤʹ Καντακουζηνός; Latin: Johannes Cantacuzenus) was a Greek nobleman, statesman, and general. He served as Grand Domestic under Andronikos III Palaiologos and regent for John V Palaiologos before reigning as Byzantine emperor in his own right from 1347 to 1354. Usurped by his former ward, he retired to a monastery under the name Joasaph Christodoulos and spent the remainder of his life as a monk and historian.
|Reigned as||In Country||From||To||Coins Issued|
|Emperors John V Palaiologos and John VI Kantakouzenos||Eastern Roman Empire (Byzantine Empire)||31 March 1347||13 April 1353|
|Emperors John V Palaiologos, John VI Kantakouzenos and Matthew Kantakouzenos||Eastern Roman Empire (Byzantine Empire)||13 April 1353||10 December 1354|