King D. Joao II 'The Prince Perfect' and Queen D.ª Leonor

[Marengo]

King João II of Portugal and the Algarves, Lord of Guinea (Castle of Sao Jorge, Lisbon, 3 March 1455 - Alvor, Portimão, 25 October 1495); married in Setúbal on 22 January, 1471 or 1473 Princess Leonor of Viseu (Portugal) (Beja, 2 May 1458 – Lisbon, 17 November 1525)

Reign: 1477-1477 and 1481 - 1495

Predecessor: King Alfonso V of Portugal and the Algarves

Succeeded by: King Manuel I of Portugal and the Algarves

Children: Crown Prince Alfonso and Prince João of Portugal

Parents João: King Alfonso V of Portugal and Princess Isabel of Coimbra (Portugal)

Parents Leonor: Prince Fernando of Portugal, Duke of Viseu and Princess Beatriz of Portugal

Siblings João: Crown Prince João and Princess Joana (Saint Joana) of Portugal

Siblings Leonor: Prince João of Viseu, 3rd Duke of Viseu, 2nd Duke of Beja; Prince Diogo of Viseu, 4th Duke of Viseu, 3rd Duke of Beja. Prince Duarte, Prince Dinis and Prince Simão of Viseu, Duchess Isabel of Braganca, King Manuel I of Portugal and Princess Catarina of Viseu

[Marengo]

João II (Portuguese, pronounced [ʒuˈɐ̃ũ]; English: John II) (March 3, 1455 – October 25, 1495), the Perfect Prince (Port. o Príncipe Perfeito), was the fourteenth king of Portugal and the Algarves. He was born in Lisbon, the son of king Afonso V of Portugal by his wife, Isabel of Coimbra, princess of Portugal. John II succeeded his father briefly in 1477 when the king retired to a monastery, but only became king in 1481.
As a prince, John II accompanied his father in the campaigns in northern Africa and was made a knight by him after the victory in Arzila in 1471. In 1473 he married Leonor of Viseu, Infanta of Portugal and his first cousin.
Even at a young age, he was not popular among the peers of the kingdom since he was immune to external influence and appeared to despise intrigue. The nobles (including particularly Fernando II, the Duke of Braganza) were afraid of his future policies as king. Events proved them right.
After the official accession to the throne in 1481, John II took a series of measures to curtail the overgrown power of his aristocracy and to concentrate power on himself. Immediately, the nobles started to conspire; John II did nothing but observe. Letters of complaint and pleas to intervene were exchanged between the Duke of Braganza and Queen Isabella I of Castile. In 1483, this correspondence was intercepted by royal spies. The House of Braganza was outlawed, their lands confiscated and the duke executed in Évora.

Read the entire wikipedia article here.

[Marengo]

Infanta Leonor of Viseu (2 May 1458, Beja–17 November 1525), Lisbon pron. IPA: [liu'noɾ dɨ vi'zeu], was a Portuguese infanta and later Queen of Portugal.

She was a daughter of Infante Fernando, Duke of Viseu and his wife and cousin Beatrice of Portugal. Her maternal grandparents were Infante João of Portugal and his wife and niece Isabella of Braganza.
Isabella was a daughter of Afonso, 1st Duke of Braganza and his first wife Beatriz Pereira Alvim. Beatriz was a daughter of Nuno Álvares Pereira and his wife Leonor de Alvim.

Read the entire wikipedia article here.