Martin I ( 1356— 1410), "the Elder", "the Humane", King of Aragon ( 1396 - 1410, King of Sicily ( 1409 - 1410) was the last direct descendant of Wilfred "the Hairy" , Count of Barcelona, to rule Aragon. He became the King of Sicily (as Martin II) after the death of his son, Martin I of Sicily, widower of Mary of Sicily.