Socialist Party of the Islands of the Valencian Country (PSPV), part of the Socialist Coordination of the Catalan Countries. Ahead of the 1977 general election, PSI created an alliance together with MSM and MSEF, joining the People's Socialist Party (PSP) in the Socialist Unity (US) coalition. US did not gain any seat in the Congress nor in the Senate in the Balearic Islands constituency. After the election, PSI refused to merge with the Balearic federation of the Spanish Socialist Workers' Party, and instead founded the Socialist Party of Majorca (PSM). Socialist Party of the Islands Socialist Party of the Islands (Catalan: "Partit Socialista de les
Balearic Islands restored in the 1295 Treaty of Anagni. The tension between the kingdoms continued through the generations until James' grandson James III was killed by the invading army of Peter's grandson Peter IV at the 1349 Battle of Llucmajor. The Balearic Islands were then incorporated directly into the kingdom of Aragon. In 1469, Ferdinand II of Aragon (king of Aragon) and Isabella I of Castile (queen of Castile) were married. After their deaths, their respective territories (until then governed separately) were governed jointly, in the person of their grandson, the Emperor Charles V. This can be considered the foundation of the