The Battle of Valverde was fought on 14 October 1385, near Valverde de Mérida, Castile, between the Kingdom of Portugal and the Crown of Castile, and was part of the Portuguese Crisis of 1383–1385. The disaster that Castile experienced at Aljubarrota was thus quickly followed by another crushing defeat at Valverde. Most of the Portuguese towns that were still occupied by the Castilians soon surrendered to John I of Portugal.