Portrait of Mariana Victoria of Spain (1718-1781), Queen consort of Portugal (1750-1777), Regent of Portugal (1776-1777), Princess of Brazil (1729-1750)
Mariana Victoria of Spain (Portuguese: Mariana Vitória; 31 March 1718 – 15 January 1781) was an Infanta of Spain by birth and was later the Queen of Portugal as wife of King Joseph I. In 1729 she was married to the son of John V of Portugal. As the mother of Maria I of Portugal, she also acted as regent of Portugal during the last months of her husband's life and acted as advisor to her daughter in her reign.
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