She was the daughter of Peter I of Portugal and his wife Inês de Castro.

Some historians consider her a natural daughter of Peter I, so that title could never be attributed to her.

Other opinions assert that after inheriting the throne, the Prince admitted that he had married Inês secretly, and she was thus a lawful Queen of Portugal.

Beatrice held this title for a year, until her husband died on 19 February 1374.

This biography of a member of the Portuguese royal family is a stub.