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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 IPhilip I
(Philip the Handsome), 1478–1506, Spanish king of Castile (1506), archduke of Austria, titular duke of Burgundy, son of Holy Roman Emperor Maximilian I and Mary of Burgundy.
..... Click the link for more information. . 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 VCharles V,
1500–1558, Holy Roman emperor (1519–58) and, as Charles I, king of Spain (1516–56); son of Philip I and Joanna of Castile, grandson of Ferdinand II of Aragón, Isabella of Castile, Holy Roman Emperor Maximilian I, and Mary of Burgundy.
..... Click the link for more information. ), 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 PadillaPadilla, Juan de
, c.1490–1521, Spanish revolutionary leader in the war of the comuneros [municipalities] against Holy Roman Emperor Charles V. Charles's conduct and his foreign advisers offended Spanish national feeling and led to a rising in Toledo under Padilla's
..... Click the link for more information. , to justify revolts against the "foreign" ruler, Charles.
See T. Miller, The Castles and the Crown (1963).