Treaty of Ágreda (1304)

The treaty of Ágreda, sometimes erroneously called the treaty of Torrellas, was signed on 9 August 1304 between the Crown of Castile and the Crown of Aragon resolved the disputed succession to Castile following the death of King Alfonso X in 1284 and demarcated the disputed border in the Kingdom of Murcia.

Negotiations took place near the border of the two kingdoms, at Ágreda on the Castilian side and Tarazona on the Aragonese. King Ferdinand IV of Castile and King James II of Aragon were present with their courts. The negotiations were mediated by King Denis of Portugal, who issued an arbitral decision at Torrellas, near Tarazona in Aragonese territory, on 8 August.