Question: When did Charlotte, Queen Of Cyprus's mother die?
Sentence (from "Helena Palaiologina"): Helena Palaiologina  (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.
Relevant evidence: Yes