Eleanor of Alburquerque was a Spanish noblewoman born in the late 14th century. She was the daughter of Juan de Alburquerque and Beatriz de la Cerda. Eleanor became the wife of Ferdinand I of Aragon, contributing to the political alliances of her time. Eleanor played a significant role in the royal court and was known for her influence in the affairs of the Crown of Aragon. Her marriage helped strengthen ties between noble families, which was crucial during a period of political instability in Spain.