James IV of Majorca

James IV of Majorca (c. 1336 – 20 January 1375) was the son of James III and Constance of Aragon. After his father fell at Llucmajor in 1349 trying to reconquer the island, James was captured by his uncle Peter IV of Aragon and caged in Barcelona until 1362.

Escaping to Naples, he married Queen Joanna I in 1363 as king consort without power. He fought for the Black Prince at Nájera and twice attacked Roussillon, dying defeated at Soria in 1375; his claim passed to his sister Isabella.