Infanta Catherine of Castile (1403–1439) was suo jure Duchess of Villena and, by marriage, Infanta of Aragon, Countess of Alburquerque and Countess of Ampurias. Catherine was the second child born to King Henry III of Castile and Catherine of Lancaster. In 1418, she was married off to her first cousin and brother-in-law,

Infante Henry of Aragon Infante Henry of Aragon (1400 – 15 June 1445), 1st Duke of Villena, 4th Count of Alburquerque, Count of Ampurias, was the Grand Master of the Order of Santiago. Childhood A member of the House of Trastamara, Henry was the third son of Ki ...

. The marriage was a part of an agreement by which Henry's older brother Alfonso married Catherine's older sister Maria and by which Henry's sister Maria married Catherine's brother, King John II of Castile. The Infanta was forced to follow her husband into exile after he failed to take the power away from her brother's favourite, Álvaro de Luna, in 1420. They did not receive all of her dowry until 1427. Her dowry included the Dukedom of Villena. Their marriage was childless. The Duchess of Villena died following a miscarriage in 1439. After her death, her brother confiscated the dukedom.

Ancestry

{{DEFAULTSORT:Catherine, Infanta, Duchess Of Villena Castilian infantas Aragonese infantas Spanish duchesses House of Trastámara Daughters of kings