Isabella I of Castile

Isabella I of Castile

Aragonese Queen Consort
Born Apr 22, 1451

Isabella I, commonly known as Isabel "the Catholic", a title granted to Ferdinand and Isabel by a papal bull in 1496, was Queen of Castile and León. She and her husband, Ferdinand II of Aragon, brought stability to the kingdoms that became the basis for the unification of Spain. Later the two laid the foundations for the political unification of Spain under their grandson, Charles V, Holy Roman Emperor.… Read More

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Learn about the memorable moments in the evolution of Isabella I of Castile.


1451 Birth Isabella was born in Madrigal de las Altas Torres, Ávila, to John II of Castile and Isabella of Portugal on 22 April 1451. … Read More
1453 2 Years Old Her younger brother Alfonso was born two years later on 17 November 1453, lowering her position to third in line. … Read More


1465 14 Years Old In 1465 an attempt was made to marry Isabella to Alfonso V of Portugal, Henry's brother-in-law. … Read More
1468 17 Years Old 1 More Event
When Henry recognised Isabella as his heir-presumptive on 19 September 1468, he also promised that his sister should not be compelled to marry against her will, while she in return agreed to obtain his consent. … Read More
1469 18 Years Old …  They were married immediately upon reuniting, on 19 October 1469, in the Palacio de los Vivero in the city of Valladolid.


1474 23 Years Old 1 More Event
Isabella's reign got off to a rocky start. Because her brother had named Isabella as his successor, when she ascended to the throne in 1474, there were already several plots against her. … Read More
1476 25 Years Old Isabella's first major reform came during the cortes of Madrigal in 1476 in the form of a police force, La Santa Hermandad (the Holy Brotherhood). … Read More
1477 26 Years Old In 1477, Isabella visited Extremadura and Andalusia to introduce this more efficient police force there as well. … Read More
1478 27 Years Old …  Two years later, Isabella further secured her place as ruler with the birth of her son John, Prince of Asturias, on 30 June 1478. … Read More
1480 29 Years Old …  In 1480, during the Cortes of Toledo, Isabella made many reforms to the Royal Council. … Read More


1492 41 Years Old …  On January 2, 1492 Isabella and Ferdinand entered Granada to receive the keys of the city and the principal mosque was reconsecrated as a church. … Read More
1494 43 Years Old …  In 1494, by the Treaty of Tordesillas, Isabella and Ferdinand agreed to divide the Earth, outside of Europe, with king John II of Portugal. … Read More
1497 46 Years Old …  By early 1497 all the pieces seemed to be in place: John, Prince of Asturias, married Archduchess Margaret of Austria, establishing the connection to the Habsburgs. … Read More


1504 53 Years Old 1 More Event
It is important to note that Isabella's reputation for sanctity derives in large measure from an image carefully shaped and disseminated by the queen herself. In 1958, the Catholic canonical process of the Cause of Canonization of Isabella was started by José García Goldaraz, the Bishop of Valladolid, where she died in 1504. 17 experts were appointed to investigate more than 100,000 documents in the archives of Spain and the Vatican and the merits of opening a canonical process of canonisation. 3,500 of these were chosen to be included in 27 volumes. … Read More
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