Kingdom of Majorca James II of Majorca. After 1279, Peter III of Aragon established that the king of Majorca was a vassal to the king of Aragon. The title continued to be employed by the Aragonese and Spanish monarchs until its dissolution by the 1715 Nueva Planta decrees. The kingdom included the Balearic Islands: Majorca, Menorca (which was still under the rule of Muslims until 1231 when its sovereignty was surrendered to James I), Ibiza and Formentera. The king was also lord of the mainland counties of Roussillon and Cerdanya, and the territories James I kept in Occitania: the signory of Montpellier, the
Kingdom of Majorca to resolve the financial crisis. The problems of the kingdom did not appear to have an end since in 1341, Peter IV of Aragon closed relations with the Kingdom of Majorca as a prelude to invasion. In May 1343, Peter IV invaded the Balearic Islands and followed that in 1344 with the invasions of the counties of Roussillon and Cerdanya. James III was able to keep only his French possessions. After the sale of these possessions to the king of France in 1349, James III left for Majorca. He was defeated and killed at the Battle of Llucmajor on 25