Joanna (Spanish queen)

Joanna (Joanna the Mad), 1479-1555, Spanish queen of Castile and León (1504-55), daughter of Ferdinand II and Isabella I. She succeeded to Castile and León at the death of her mother. Ferdinand II briefly assumed the regency until he was replaced by Joanna's ambitious husband, Philip I . After Philip's death (1506), Ferdinand again assumed the rule, for Joanna had by this time become quite insane. At Ferdinand's death (1516) Joanna's elder son, Charles (later Holy Roman Emperor Charles V ), was proclaimed joint ruler of Castile with his mother. Joanna spent the rest of her life in the castle of Tordesillas. The pretense that she was not actually insane was sometimes used by the discontented, including Juan de Padilla , to justify revolts against the "foreign" ruler, Charles.

Bibliography: See T. Miller, The Castles and the Crown (1963).

Joanna ( the Mad) (1479–1555) Spanish queen of Castile and León (1504–55). She was the daughter of Ferdinand II and Isabella I and inherited Castile and León at her mother's death. Her father acted as regent for her until she married Philip I, son of the Holy Roman emperor. Always mentally unstable, she became insane after the death of Philip in 1506 and Ferdinand again acted as her regent. Her son Charles I (later Holy Roman Emperor Charles V) was joint ruler after Ferdinand died in 1516. Another son, Ferdinand, succeeded Charles as emperor.