Beatriz Pereira de Alvim
| Beatriz Pereira de Alvim | |
|---|---|
Beatriz in a 1534 miniature in the Genealogy of D. Manuel Pereira, 3rd Count of Feira | |
| Born | 1380 |
| Died | 1414 Chaves |
| Spouse | Afonso, Count of Barcelos |
| Father | Nuno Álvares Pereira |
| Mother | Leonor de Alvim |
_-_Genealogia_de_D._Manuel_Pereira,_3.º_conde_da_Feira_(1534).png){kind=link}
Beatriz Pereira de Alvim (1380–1414) was a Portuguese noblewoman, the only child of Nuno Álvares Pereira and his wife Leonor de Alvim.
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.
Afonso and Beatriz had three children.
- Afonso of Braganza (1400–1460), 4th Count of Ourém and 1st Marquis of Valença, 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