Truce between Castile and Portugal

Name: Truce between Castile and Portugal
Start: 1288

Type Event Region Iberia Time 1288

Following talks at Sabugal in July 1287, Sancho IV of Castile and Denis of Portugal reached a border truce around 1288, agreeing to jointly counter d…

Timeline

1287Sabugal · PortugalSancho IV and Denis met at Sabugal to coordinate suppressing their domestic opponents: in Portugal against Prince Afonso and the Lara family, in Castile against the Lacerda faction and noble factions. The two sides also preliminarily agreed on a double marriage plan between heirs Afonso (Portugal) and Beatrice (Castile), and Ferdinand (Castile) and Constance (Portugal).
1288Western Iberian border · Iberian PeninsulaIn 1288 the two kingdoms maintained a border truce based on the Sabugal understanding; Denis's marriage to Isabella of Aragon further consolidated ties with the Castile-Aragon axis. Border conflicts temporarily subsided until they flared again after 1295 due to civil strife in Castile, with borders finally formally demarcated by the 1297 Treaty of Alcañices.

Sources

Relations between Portugal and Castile in the Late Middle Ages – 13th-16th centuries — Nieto Soria, J.M. https://dialnet.unirioja.es/descarga/articulo/2777900.pdf
Denis of Portugal https://en.wikipedia.org/wiki/Denis_of_Portugal