Joanna (6 November 1479 – 12 April 1555), known as Joanna the Mad (Spanish: Juana la Loca), was queen of Castile from 1504 and of Aragon from 1516. From the union of these two crowns modern Spain evolved. Joanna married Philip the Handsome, who was crowned King of Castile in 1506, initiating the rule of the Habsburgs in Spain. After Philip's death that same year, Joanna was dee ... Show More