The Treaty of Elvas (Portuguese: tratado de Elvas) was a peace treaty between the Kingdom of Portugal and Crown of Castile, which ended the Portuguese-Castilian War of 1381-1382.
The terms of the treaty were as follows: The treaty was negotiated by the Portuguese queen Leonor Teles, Count of Ourém, the Galician Juan de Andeiro,[3] Bishop of Lisbon, the Castilian Martinho de Zamora,[3] Bishop of Coimbra, the Castilian Juan Cabeza de Vaca,[3] Bishop of Guarda, the Portuguese Afonso Correa,[3] lawyer João das Regras and others.
[1] Pedro de Luna (future antipope Benedict XIII), an envoy of Avignon antipope Clement VII, served as mediator between the Portuguese and Castilian parties.
As a chronicler recalls, learning of the betrayal of the Portuguese, the English knights angrily put down their helmets and smashed them with axes.
[1] On 1 September 1382 Edmund, earl of Cambridge, took his ships and left Lisbon with his army.