This Day in History: 1386-11-11

On 11th November 1386 a treaty is concluded between John of Gaunt, lord of Pontefract, and his so-called ally King John of Portugal at River Minho on the Castilian-Portuguese frontier. Portugal agreed to help Gaunt invade Leon (W Castile) in 1387 with 5000 troops but as his own commanders had only consented to serve him in 1386, he had to renegotiate terms with them to stop their returning home.