Beatriz Pereira de Alvim (1380–1414) was a Portuguese noblewoman, the only child of

Nuno Álvares Pereira D. Nuno Álvares Pereira, O. Carm. (; 24 June 1360 – 1 November 1431) was a Portuguese general of great success who had a decisive role in the 1383-1385 Crisis that assured Portugal's independence from Castile. He later became a mystic ...

and his wife

Leonor de Alvim Leonor de Alvim (1388) was a Portuguese noblewoman. She belonged to a family from Entre-Douro-e-Minho and was the daughter of João Pires de Alvim and his wife Branca Pires Coelho. She became the heir to her father due to the lack of male childre ...

. On 8 November 1401, she married Afonso, Count of Barcelos, illegitimate son of king John I of Portugal. She died before her husband became

Duke of Braganza The title Duke of Braganza ( pt, Duque de Bragança) in the House of Braganza is one of the most important titles in the peerage of Portugal. Starting in 1640, when the House of Braganza acceded to the throne of Portugal, the male heir of the P ...

. Afonso and Beatriz had three children. * Afonso of Braganza (1400–1460), 4th Count of Ourém and 1st

Marquis of Valença Marquis of Valença (in Portuguese ''Marquês de Valença'') was a Portuguese title of nobility granted by royal decree of King Afonso V of Portugal, dated from October 11, 1451, to ''Dom'' Afonso of Braganza (1400–1460), who already was 4th Co ...

, had a natural son from ''Dona'' Brites de Sousa (some say they secretly married). His issue took the name ''de Portugal'' * Isabella of Braganza (1402–1465), married her uncle Infante John, Lord of Reguengos, son of John I of Portugal * Ferdinand I, Duke of Braganza (1403–1478), succeeded his father as second Duke of Braganza

References

Bibliography

* * 1380 births 1414 deaths Beatriz 14th-century Portuguese people 15th-century Portuguese people 14th-century Portuguese women 15th-century Portuguese women {{Portugal-royal-stub