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Portuguese Royalty
House of Burgundy

Afonso Henriques (Afonso I)
Children include Infanta Mafalda Infanta Urraca, Queen of Léon Infante Sancho (future Sancho I) Infanta Teresa, Countess of Flanders and Duchess of Burgundy
Sancho I
Children include Infanta Teresa, Queen of Castile Infanta Sancha, Lady of Alenquer Infanta Constança Infante Afonso (future Afonso II) Infante Pedro, Count of Urgell Infante Fernando, Count of Flanders Infanta Branca, Lady of Guadalajara Infanta Berengária, Queen of Denmark Infanta Mafalda, Queen of Castile
Afonso II
Children include Infante Sancho (future Sancho II) Infante Afonso, Count of Boulogne (future Afonso III) Infanta Leonor, Queen of Denmark Infante Fernando, Lord of Serpa
Sancho II
Afonso III
Children include Infanta Branca, Viscountess of Huelgas Infante Dinis (future Denis I) Infante Afonso, Lord of Portalegre Infanta Maria Infanta Sancha
Denis
Children include Infanta Constança, Queen of Castile Infante Afonso (future Afonso IV)
Afonso IV
Children include Infanta Maria, Queen of Castile Infante Pedro (future Peter I) Infanta Leonor, Queen of Aragon
Peter I
Children include Infanta Maria, Marchioness of Tortosa Infante Fernando (future Ferdinand I) Infanta Beatriz, Countess of Alburquerque Infante João, Duke of Valencia de Campos Infante Dinis, Lord of Villar-Dompardo John, Grand Master of the Order of Aviz (future John I) (natural son)
Ferdinand I
Children include Infanta Beatrice, Queen of Castile and Leon (future Beatrice I of Portugal)
Beatrice (disputed queen)
Children include Infante Miguel of Castile and Portugal

Constance of Peñafiel or Constance Manuel of Castile (1315-1323 – 13 November 1345) was the daughter of Juan Manuel, Duke of Peñafiel (1282-1348), called "el escritor" (the writer), Duke of Peñafiel, and his second wife Constance of Aragon, a daughter of James II of Aragon. She was Crown Princess of Portugal.

While still a child she became the first wife of future King Alfonso XI of Castile (1311-50), also a child at the time, in Valladolid. The marriage was annulled in 1327.

She became the second wife of King Pedro I of Portugal (1320-67) on 24 August 1339 in Lisbon. They had three children:

• Louis (27 February 1340 - 6 March 1340).
• Mary (6 April 1343 - app. 1367), Married to Ferdinand, Prince of Aragon.
• Ferdinand I of Portugal (31 October 1345 - 29 October 1383), 9th King of Portugal.

She died and is buried in Santarém, Portugal in 1349.