Marianne Victoria of Bourbon (March 31, 1718 – January 15, 1781) (in Portuguese Mariana Vitória, in Spanish Mariana Victoria) was the eldest daughter of Philip V of Spain and Elizabeth Farnese. She was Queen Consort of Portugal and Algarves.
As a child, she was engaged to Louis XV of France, but went back to Spain to continue her education. The engagement was later broken off and she was instead engaged to the future Joseph I of Portugal. She married Joseph on January 19, 1729. When her husband was declared incapable of ruling in 1774, she was proclaimed Regent, and acted as the Regent for Portugal in all matters until Joseph's death on February 24, 1777. Upon her husband's death, their eldest daughter Maria became the Queen Regnant as Maria I of Portugal. (see:
http://en.wikipedia.org/wiki/Marianne_Victoria_of_Borb%C3%B3n)
She had the following children:
1. Dona Maria Francisca Isabel Rita Gertrudes Joanna Reinha de Portugal Princeza de Beira (17.12.1734, Lisboa-20.3.1816, Rio de Janeiro)
2. Dona Maria Ana Francisca Dorotea Josefa Antonia Gertrudes Rita Joana Efigenia de Braganca Infanta de Portugal (7.10.1736, Lisboa-16.5.1813/26.5.1818, Rio de Janeiro)
3. Dona ? de Braganca Infanta de Portugal (?.2.1739-?.2.1739)
4. Dona Maria Francisca Dorotea Josefa Antónia Gertrudes Rita Joana Efigénia de Braganca Infanta de Portugal (21.9.1739, Lisboa-14.1.1771, Lisboa)
5. N de Braganca Infante de Portugal (7.3.1742-7.3.1742)
6. N de Braganca Infante de Portugal (15.10.1742-15.10.1742)
7. N de Braganca Infante de Portugal (?.5.1744-?.5.1744)
8. Dona Maria Francisca Benedita Ana Isabel Joana Antonia Laurencia Inacia Teresa Gertrudes Rita Rosa de Braganca Infanta de Portugal (21.9.1739/25.7.1746, Lisboa-18.8.1829, Lisboa)