Queen Catherine of Portugal was born in 1436 and was a member of the House of Aviz. She became queen consort of Portugal through her marriage to King Afonso V in 1450. Catherine was known for her strong character and played a significant role in the royal court during her husband's reign. Catherine's marriage to Afonso V produced several children, including John II of Portugal, who later became king. Her influence extended beyond her family, as she was involved in various political matters of the time, contributing to the stability of the Portuguese monarchy during the late 15th century.