Joanna of Castile

Queen of Castile (1504–1555) and Aragon (1516–1555)

Joanna or Joan (also known as Joanna the Mad or Joan the Mad; Spanish: Juana la Loca; 6 November 1479 – 12 April 1555) was Queen of Castile from 1504 and Queen of Aragon from 1516 to her death in 1555. She was the daughter of Queen Isabella I of Castile and King Ferdinand II of Aragon. Joanna was married by arrangement to the Austrian archduke Philip the Handsome on 20 October 1496.

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