The Treaty of Ayllón was a peace treaty that was signed in 1411 in Ayllón, Castile, between the

Kingdom of Portugal The Kingdom of Portugal was a Portuguese monarchy, monarchy in the western Iberian Peninsula and the predecessor of the modern Portuguese Republic. Existing to various extents between 1139 and 1910, it was also known as the Kingdom of Portugal a ...

and the

Crown of Castile The Crown of Castile was a medieval polity in the Iberian Peninsula that formed in 1230 as a result of the third and definitive union of the crowns and, some decades later, the parliaments of the kingdoms of Kingdom of Castile, Castile and Kingd ...

. Newitt, p. 21

References

Sources

* 1410s treaties Ayllon Treaties of the Crown of Castile 1411 in Portugal 1411 in Europe 15th century in Castile {{Treaty-stub