John II of Castile was King of Castile and León from 1406 to 1454. He succeeded his older sister, Maria of Castile, Queen of Aragon, as Prince of Asturias in 1405. Wikipedia
Born: March 6, 1405, Toro, Spain
Died: July 20, 1454 (age 49 years), Valladolid, Spain
Children: Isabella I of Castile, Henry IV of Castile, Alfonso, Prince of Asturias, and more
Parents: Henry III of Castile and Catherine of Lancaster
Spouse: Isabella of Portugal, Queen of Castile (m. 1447–1454) and Maria of Aragon, Queen of Castile (m. 1420–1445)
Great-grandparents: Henry II of Castile, Pedro I of Castile, Peter IV of Aragon, and more
Place of burial: Cartuja de Miraflores - Burgos, Spain