Concord of Segovia
1475 CE.
Shown on the map at 40.953°, -4.133°.
The Concord of Segovia (Spanish: Concordia de Segovia) was an agreement signed on 15 January 1475 in the Alcázar of Segovia by Isabella I of Castile and her husband Ferdinand II of Aragon, at the time King of Sicily and Prince of Girona. The pact regulated the joint government of the Crown of Castile following the contested accession of Isabella, and is regarded as a foundational instrument of the dynastic union of the crowns of Castile and Aragon that gave rise to the future Spanish Empire under the Catholic Monarchs. The document, drawn up by Archbishop Alfonso Carrillo de Acuña of Toledo and Cardinal Pedro González de Mendoza of Sigüenza, recognised Isabella as the sole proprietary heir of Castile while granting Ferdinand the title of king together with extensive executive faculties. It did not unite the two crowns into a single political body; rather, it set out a working accommodation between the Castilian magnates who supported Isabella and the Aragonese party of her husband.
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