Helena Kantakouzene was the Empress consort of John V Palaiologos of the Byzantine Empire. She served as Regent during the absence of her son Manuel II in 1393. Wikipedia
Born: 1333, Byzantine Empire
Died: December 10, 1396 (age 63 years), Constantinople
Children: Andronikos IV Palaiologos, Theodore I Palaiologos, Manuel II Palaiologos, and more
Spouse: John V Palaiologos (m. 1347)
Parents: John VI Kantakouzenos and Irene Asanina
Great grandchildren: Sophia Palaiologina, Andreas Palaiologos, Manuel Palaiologos, and more
Great-grandparents: Irene Palaiologina, Empress of Bulgaria and Ivan Asen III of Bulgaria