House of Alagón Lords of Alagón and Sástago Counts of Sástago Marquises of Calanda
House of Alagón Alternative arms variant from Gelre Armorial
Cadet Branches
House of Alagona Counts of Mistretta, Butera and Paternò Issued from younger son of Artal IV, Lord of Alagón Sicilian branch
House of Alagon di Villasor Counts of Goceano and Villasor Marquises of Villasor Issued from younger son of Artal VI, 11th Lord of Alagón Sardinian branch