Isabella of Castile, Duchess of Brittany
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Isabella of Castile (1283 - 1328) was the first Queen consort of James II of Aragon and the second wife of John III, Duke of Brittany.
[edit] Family
Isabella was the eldest daughter of Sancho IV of Castile and María de Molina.
Her paternal grandparents were Alfonso X of Castile and Violant of Aragon. Her maternal grandparents were Alfonso of Molina and Mayor Alonso de Meneses.
Alfonso X was a son of Ferdinand III of Castile and Beatriz of Swabia. Alfonso of Molina was a son of Alfonso IX of León and Berenguela of Castile.
Ferdinand III was another son of Alfonso IX and Berenguela of Castile. Beatriz was a daughter of Philip of Swabia and Irene Angelina.
[edit] Marriages
On 1 December 1291, Isabella married James II of Aragon in the city of Soria. The bride was only eight years old and the groom twenty-four. The marriage was never consummated.
Sancho IV died on 25 April 1295. James chose to change his alliances and take advantage of the turmoil inside Castile. He had their wedding annuled and proceeded to marry Blanche of Anjou, second daughter of Charles II of Naples and Maria Arpad of Hungary.
Isabella remained unwed for about a decade. In 1310, she married her second husband John III, Duke of Brittany. There were no children from this marriage.
| Preceded by Constantia of Sicily |
Queen consort of Sicily 1291–1295 |
Succeeded by Blanche of Anjou |
| Queen consort of Aragon 1291–1295 |
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| Countess consort of Barcelona 1291–1295 |
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| Queen consort of Valencia 1291–1295 |
