Infanta Maria Theresa of Portugal
Infanta Maria Theresa of Portugal was a Princess of the House of Braganza. She became by marriage an Archduchess of Austria and also sisterinlaw of Emperors Franz Joseph I of Austria and Maximilian I of Mexico, as well as stepgrandmother of Emperor Charles I of Austria.
Maria Teresa was born in Kleinheubach, Kingdom of Bavaria the second daughter of Miguel I of Portugal and Princess Adelaide of LwensteinWertheimRosenberg. Her father became king of Portugal in 1828 after deposing his niece Queen Maria II. He reigned until 1834 when Maria II of Portugal was restored and Miguel was forced into exile.
Source: Wikipedia