Viscounts | Titles by Rank
- Viscounts of Almeida
- Viscounts of Almeida Araújo
- Viscounts of Almeida e Vasconcelos
- Viscounts of Almeida Garrett
- Viscounts of Almeida-br
- Viscounts of Almeidinha
- Viscounts of Almendra
- Viscounts of Almocaden
- Viscounts of Alpedriz
- Viscounts of Alpendurada
- Viscounts of Alpiarça
- Viscounts of Alquerforadat
- Viscounts of Altamira de Vivero
- Viscounts of Altas Moras
- Viscounts of Alte
- Viscounts of Alter do Chão
- Viscounts of Alto Dande
- Viscounts of Alvalade
- Viscounts of Alvarenga
- Viscounts of Alvelos
- Viscounts of Alverca
- Viscounts of Alves de Sá
- Viscounts of Alves Machado
- Viscounts of Alves Mateus
- Viscounts of Alvor
- Viscounts of Amarante
- Viscounts of Amaya
- Viscounts of Ameal
- Viscounts of Amoreira da Torre
- Viscounts of Amoroso Lima
- Viscounts of Amparo
- Viscounts of Anadia
- Viscounts of Anbite
- Viscounts of Andaluz
- Viscounts of Andaraí
- Viscounts of Angers
- Viscounts of Angest
- Viscounts of Anjou
- Viscounts of Anterroches
- Viscounts of Antunes Braga
- Viscounts of Araçaji
- Viscounts of Aracati
- Viscounts of Araguaia
- Viscounts of Aramaré
- Viscounts of Arantes
- Viscounts of Aranzo
- Viscounts of Arari
- Viscounts of Araruama
- Viscounts of Araújo
- Viscounts of Araxá