Maria II of Portugal was the Queen of Portugal from 2 May 1826 to 23 June 1828. She reigned as the queen once again from 1834 until her death in 1853 at the age of 34 due to complications during her 11th delivery.
Born the Archduchess of Austria, Maria Leopoldina was a great painter and also grew up studying subjects such as botany and mineralogy. By virtue of her marriage to Pedro I of Brazil and IV of Portugal, she became the queen of Portugal and the empress of Brazil.
The eldest daughter of Portuguese king John III, Maria Manuela was also the first wife of Philip II of Spain, who ruled Spain, Portugal, Naples, and Sicily at various points. She died following a haemorrhage after giving birth to Carlos, Prince of Asturius, also known as Don Carlos.
Infanta Maria Antonia of Portugal was the second wife of Robert I, the duke of Parma. Born in exile, to Portuguese king Infante Miguel, who had been banished by his brother, Maria again went into exile in Canada after her husband’s death and eventually moved to Luxembourg after World War II.
Eleanor of Viseu was a Portuguese princess who later served as queen consort of Portugal. Eleanor is regarded as one of Portugal's most notable queens consort and is credited with founding the city of Caldas da Rainha. Eleanor of Viseu commissioned a translation of Speculum vitae Christi into Portuguese and is thus credited with introducing the printing press to Portugal.