Who Was When

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Crown of CastileCorona de Castilla

EuropeHeartland today: Spain

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The kingdoms of Castile and León, joined for good under Ferdinand III in 1230. Its kings took Córdoba and Seville, Alfonso X sponsored law and song, and Isabella ruled from 1474. Under Isabella and Ferdinand and then the Habsburgs it stayed a separate crown from Aragon.

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Key events

  1. Castile, Aragon and Navarre defeat the Almohad army at Las Navas de Tolosa, opening the way into the Guadalquivir valley

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  2. Ferdinand III inherits León from his father and joins it to Castile for good

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  3. Ferdinand III takes Seville after a long siege, following the taking of Córdoba in 1236

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  4. Alfonso X becomes king; his court sponsors translations from Arabic, a law code and the Cantigas de Santa María

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  5. Isabella is proclaimed queen at Segovia two days after the death of Henry IV, and a war of succession follows

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  6. Castile and Aragon's monarchs and Portugal sign the Treaty of Tordesillas, drawing a line 370 leagues west of the Cape Verde islands

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  7. Charles I, a Habsburg, inherits the Spanish crowns on the death of Ferdinand

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  8. – Castilian towns rise against Charles I, and royalist forces defeat the comuneros at Villalar on 23 April 1521Disputed

    One source dates the revolt 1520 to 1522, because Toledo held out until February 1522.

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  9. – Philip V's Nueva Planta decrees abolish the separate laws of Valencia, Aragon, Mallorca and Catalonia, ending the legal separation of the two crownsDisputed

    This is the end convention chosen here. The decrees placed the Aragonese realms under Castilian law and did not formally abolish the Crown of Castile.

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