Constantine was the second husband of Marie of Armenia, daughter of Oshin of Corycos and Jeanne of Anjou. (Constantine V had been her first husband.)
Constantine formed an alliance with Peter I of Cyprus, offering him the port and castle of Corycus. On Peter's death in 1369, Constantine looked for a treaty with the Sultan of Cairo. The barons were unhappy with this policy, fearing annexation by the Sultan, and in 1373 Constantine was murdered.
Upon his death he was succeeded by his distant cousin Leo VI.
Preceded by: Constantine V | Kingdom of Armenia | Followed by: Leo VI |
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