Dona Beatriz de Portugal was a Portuguese noblewoman born in 1430. She was the daughter of King Afonso V of Portugal and Isabel of Coimbra. Beatriz became known for her marriage to John II of Portugal, which helped strengthen political alliances in the region. Beatriz played a significant role in the royal court and was involved in various charitable activities. She was also the mother of Afonso, Prince of Portugal, who was a key figure in the succession of the Portuguese throne. Her life reflects the complexities of noble lineage and political strategy in 15th-century Portugal.