Context : Helena Palaiologina (Greek: Ἑλένη Παλαιολογίνα) (3 February 1428 -- 11 April 1458) was a Byzantine princess of the Palaiologos family, who became the Queen consort of Cyprus and Armenia, titular Queen consort of Jerusalem, and Princess of Antioch through her marriage to King John II of Cyprus and Armenia. 
Answer : John II of Cyprus
What is Helena Palaiologina's spouse's name?