Maria Teresa Princess of Beira Royalty
Infanta Maria Teresa of Portugal (or of Braganza; Portuguese pronunciation: [mɐˈɾiɐ tɨˈɾezɐ] or [ˈtɾezɐ]; 29 April 1793 – 17 January 1874) was the firstborn child of John VI of Portugal and Carlota Joaquina of Spain, and heir to the throne of Portugal between 1793 and 1795, until her short-lived brother Francisco António, Prince of Beira was born.