Beatriz of Portugal, Duchess of Viseu

Infanta Beatrice
Infanta Beatrice
	Duchess of Viseu
	Depiction of Infanta Beatriz in a 1678 portrait in the Convent of Beja
Born	13 June 1430
Died	30 September 1506 (aged 76)
Spouse	Infante Fernando, Duke of Viseu
Issue	Manuel I of Portugal; Leonor of Viseu; Isabella of Viseu
House	Aviz
Father	John, Constable of Portugal
Mother	Isabella of Barcelos
Religion	Roman Catholicism
Signature

Infanta Beatriz of Portugal (13 June 1430 – 30 September 1506) was a Portuguese infanta, daughter of John, Constable of Portugal (fourth son of King John I of Portugal and his wife Philippa of Lancaster) and Isabella of Barcelos a daughter of Afonso I, Duke of Braganza.

Biography

Due to the Aviz dynasty marriage policy, Beatrice was first cousin and sister-in-law of king Afonso V of Portugal, second cousin and mother-in-law of king John II of Portugal, first cousin and mother-in-law of Ferdinand II, 3rd Duke of Braganza and mother of king Manuel I of Portugal, playing an active role in politics during the consecutive reigns of Afonso V, John II and Manuel I.

Through her sister Isabella, wife of John II of Castile, she was an aunt of Isabella I of Castile, helping to settle both the Treaty of Alcáçovas and the Treaty of Terçarias de Moura between the Kingdom of Portugal and the Kingdom of Castile, after meeting with her niece Isabella in person.

She was also predominant in the Order of Santiago, acting as tutor for her son Diogo.

Infanta Beatrice protected and encouraged Gil Vicente, a Portuguese playwright, considered as the father of the Portuguese theatre.

She founded the Religiosas da Conceição monastery, in Beja, where her husband was buried.

Marriage and children

In 1447, Beatrice married her cousin Infante Ferdinand (Portuguese: Fernando), 2nd Duke of Viseu, son of King Edward of Portugal (her uncle). From this marriage, they had ten children:

Infante João (1448–1472), 3rd Duke of Viseu, 2nd Duke of Beja, 7th Constable of Portugal.
Infante Diogo (1450–1484), 4th Duke of Viseu, 3rd Duke of Beja;
Infanta Eleanor of Viseu (1458–1525), married to King John II of Portugal, becoming Queen of Portugal;
Infanta Isabella of Viseu (1459–1521), married to Ferdinand II, Duke of Braganza;
Infante Duarte of Viseu (1462 – died in childhood);
Infante Dinis of Viseu (1464 – died in childhood);
Infanta Catarina of Viseu (1465 – died in childhood);
Infante Simão of Viseu (1467 – died in childhood);
Infante Afonso of Viseu (1468 – died in childhood);
Infante Manuel (1469–1521), 5th Duke of Viseu, 4th Duke of Beja. Became King of Portugal, as Manuel I, following his cousin's (John II) death.

Ancestry

Ancestors of Beatriz of Portugal, Duchess of Viseu[1]

16. Afonso IV of Portugal

8. Peter I of Portugal

17. Beatrice of Castile

4. John I of Portugal

18. Lourenço Martins

9. Teresa Lourenço

19. Sancha Martins

2. John, Constable of Portugal

20. Edward III of England

10. John of Gaunt, 1st Duke of Lancaster

21. Philippa of Hainault

5. Philippa of Lancaster

22. Henry of Grosmont, 1st Duke of Lancaster

11. Blanche of Lancaster

23. Isabel of Beaumont

1. Beatriz of Portugal

24. Peter I of Portugal (= 8)

12. John I of Portugal (= 4)

25. Teresa Lourenço (= 9)

6. Afonso I, Duke of Braganza

26. Pero Esteves, o Barbadão

13. Inês Pires

27. Maria Anes

3. Isabel of Barcelos

28. Álvaro Gonçalves Pereira, Prior of Crato

14. Nuno Álvares Pereira, 7th Count of Barcelos

29. Iria Gonçalves do Carvalhal

7. Beatriz Pereira de Alvim

30. João Pires de Alvim

15. Leonor Anes de Alvim

31. Branca Pires Coelho

References

de Sousa, Antonio Caetano (1735). Historia genealogica da casa real portugueza [Genealogical History of the Royal House of Portugal] (in Portuguese). 2. Lisboa Occidental. p. 167.

Bibliography

”Nobreza de Portugal e do Brasil” – Vol. I, page 298 and 312. Published by Zairol Lda., Lisbon 1989.

External links

Genealogy of Infanta Beatrice, Duchess os Viseu, in Portuguese

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[DeSousa2-1] Sousa, Antonio Caetano (1735). Historia genealogica da casa real portugueza [Genealogical History of the Royal House of Portugal] (in Portuguese). 2. Lisboa Occidental. p. 167.