Иоанн V Палеолог
John is an obscure figure. Born ca. 1342, he was the eldest son of Matthew Kantakouzenos, co-emperor of the Byzantine Empire in 1353–1357, and Irene Palaiologina. On Matthew's abdication from the throne in December 1357, John V Palaiologos, now sole emperor, raised John to the supreme court rank of Despot.