Eleanor of Sicily was a noblewoman born in 1325, known for her marriage to Peter IV of Aragon. She was the daughter of Frederick III of Sicily and Eleanor of Anjou. Her marriage helped strengthen political ties between Sicily and Aragon, which was significant during a time of regional conflict. Eleanor played a role in the cultural and political life of her time. She was the mother of several children, including Constance of Aragon, who later became Queen of Castile. Eleanor's legacy is often associated with the dynastic alliances that shaped the history of the Mediterranean region.