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Martin (born 1356, Gerona, Catalonia [Spain]—died May 31, 1410, Barcelona) was the king of Aragon from 1395 and of Sicily (as Martin II from 1409). He was the son of Peter IV and brother of John I of Aragon. Martin’s life was marked chiefly by the continued Aragonese intervention in Sicily. When Frederick III of Sicily died in 1377, leaving a daughter, Mary, as his heiress, there ensued a long period of disorder. Peter IV...