Peter II of Aragon died on 1213-09-12.
Peter II of Aragon was born in 1157.
Peter of Castile died on 1369-03-23.
Peter IV of Aragon died on 1387-01-06.
James II of Aragon died on 1327-11-05.
Alfonso II of Aragon died on 1196-04-25.
John II of Aragon died on 1479-01-20.
Ramiro II of Aragon died on 1157-08-16.
Peter of Aragon - heir of Sicily - died on 1400-11-08.
King Peter IV of Aragon died on January 5, 1387 at the age of 67.
King John II of Aragon died on January 20, 1479 at the age of 81.
King James II of Aragon died on November 2, 1327 at the age of 60.
Me thinks it was Peter II. found it in a crossword, may or may not be right