- Vassal of King Pedro of Portugal.
- Witnessed King Pedro in Cantanhede swearing on the Gospels that he had married Dona Inês de Castro. [Pedro, ch. 27: 22].
- Son of Rui Gonçalves Pereira, the illegimate half-brother of the Archbishop of Braga Gonçalo Pereira (d. 1345). Both his brothers Gonçalo Pereira and Rui Pereira were also at the court of King Fernando.
- Some historians also identify this Álvaro Pereira with the homonymous marshal (marechal) of the armies of king Fernando I (died 1386).
Is this Álvaro Gonçalves Pereira, Prior do Crato, father of Nuno Álvares Pereira, or a cousin?