1356–1410, king of Aragón and count of Barcelona (c.1395–1410) and, as Martin II, king of Sicily (1409–10). He succeeded his brother, John I, in Aragón and became king of Sicily on the death of his son, Martin I of Sicily, who had married Maria, last of the Sicilian branch of the house of Aragón. Martin of Aragón and Sicily died without a male heir and thus was the last ruler from the Catalan dynasty of Aragón. After a two-year interregnum, his nephew, Prince Ferdinand of Castile, was chosen (1412) king of Aragón and Sicily as Ferdinand I.