Constance of Aragon, Queen of Sicily

Constance of Aragon (Catalan: Constança d'Aragó; 1343 – 2/18 July 1363), was the first Queen consort of Frederick III the Simple and she was an infanta of Aragon.

Aragonese royalty
House of Barcelona
Alfonso II
Children include Peter (King of Aragon; Count of Barcelona) Constance (Holy Roman Empress; Queen consort of Hungary, Germany and Sicily) Alfonso (Count of Provence) Eleanor (Countess consort of Toulouse) Sancha (Countess consort of Toulouse)
Peter II
Children include James (King of Aragon, Valencia and Majorca; Count of Barcelona)
James I
Children include Violant (Queen consort of Castile and Leon) Constance (Lady consort of Villena) Peter (King of Aragon, Valencia and Sicily; Count of Barcelona) James (King of Majorca) Isabella (Queen consort of France) Sancho (Archbishop of Toledo)
Peter III
Children include Alfonso (King of Aragon and Valencia) James (King of Sicily, Aragon, Valencia, Sardinia and Corsica; Count of Barcelona) Elizabeth (Queen consort of Portugal) Frederick (King of Sicily)
Alfonso III
James II
Children include James (monk) Alfonso (King of Aragon, Valencia, Sardinia and Corsica; Count of Barcelona) Maria (Lady of Cameros) John (Archbishop of Toledo and Tarragona; Latin Patriarch of Alexandria) Isabella (Queen consort of Germany)
Alfonso IV
Children include Constance (Queen consort of Majorca) Peter (King of Aragon, Valencia and Majorca; Count of Barcelona) James (Count of Urgell)
Peter IV
Children include Constance (Queen consort of Sicily) Joanna (Countess consort of Ampurias) John (King of Aragon, Valencia and Majorca; Count of Barcelona; Duke of Athens and Neopatria) Martin (King of Aragon, Valencia, Majorca, Sicily, Sardinia and Corsica; Count of Barcelona; Duke of Montblanc) Eleanor (Queen consort of Castile and Leon) Isabella (Countess consort of Urgell)
John I
Children include Joanna (Countess consort of Foix) Yolande (Queen consort of Naples; Duchess consort of Anjou; Countess consort of Provence, Maine and Piedmont)
Martin
Children include Martin (King of Sicily; Count of Luna; Lord of Segorbe)

She was the eldest child of Peter IV of Aragon[1] and his first wife Maria of Navarre. Her father unsuccessfully proposed her as heir to the throne in early 1347, in the absence of a male heir.

On 8 February 1351 at Perpignan, was performed the betrothal between Constance and Louis I of Anjou, son of King John II of France. However, the marriage never took place.

On 11 April 1361 at Catania, Constance married King Frederick III of Sicily.[1] They only had one daughter, Maria (2 July 1363 - 25 March 1401),[1] who succeeded her father as reigning Queen of Sicily and married Martin of Aragon.

In 1363 Constance died in Catania, Sicily, either from the plague,[1] or following childbirth complications. She is buried in the Cathedral of Catania.