Barons | Titles by Rank
- Barons of Alves da Conceição
- Barons of Alvito
- Barons of Alvoco da Serra
- Barons of Amambaí
- Barons of Amaraji
- Barons of Amazonas
- Barons of Åminne
- Barons of Amory
- Barons of Amparo
- Barons of Anadia
- Barons of Anajás
- Barons of Anajatuba
- Barons of Ancede
- Barons of Ancenis
- Barons of Andaluz
- Barons of Andaraí
- Barons of Andilla
- Barons of Anethan
- Barons of Anglejan
- Barons of Angra
- Barons of Anhumas
- Barons of Annenberg
- Barons of Ansiães
- Barons of Ansouis
- Barons of Antas
- Barons of Antella
- Barons of Antibes
- Barons of Antillon
- Barons of Anton
- Barons of Antonina
- Barons of Aparecida
- Barons of Apchier
- Barons of Aquino
- Barons of Aquino-br
- Barons of Aquiraz
- Barons of Araçaji
- Barons of Aracaju
- Barons of Aracati
- Barons of Araçuaí
- Barons of Araguaia
- Barons of Araguari
- Barons of Aramaré
- Barons of Arantes
- Barons of Araraquara
- Barons of Araras
- Barons of Arari
- Barons of Arari-b
- Barons of Arariba
- Barons of Araripe
- Barons of Araruama