Leonor of Viseu (1458-1525) was a Princess and later Queen of Portugal. She married Prince Joćo in 1473. She founded what became the city of Caldas da Rainha, which is named in her honor, rainha meaning "queen" in Portuguese.
Ferdinand, Prince of Portugal, Duke of Viseu (Portuguese: Fernando) was the third son of Portuguese King Edward of Portugal and his wife Leonor of Aragon.
João (1448-1472), 3rd Duke of Viseu, 2nd Duke of Beja, 6th general of the kingdom.
Leonor of Portugal (1458-1525), married John II of Portugal and became Queen of Portugal.
In the following year, the Duke of Viseu, his cousin and brother-in-law was summoned to the palace and stabbed to death by the king himself for suspicion of a new conspiracy.
Of his wife, Leonor of Viseu, Princess of Portugal João had two sons, but only one of them survived childhood.
Because of the premature death of the prince the throne was inherited by Manuel of Viseu, Duke of Beja, son of Ferdinand, Duke of Viseu, who reigned as Manuel I, 14th King of Portugal.