Marquesses | Titles by Rank
- Marquesses of Albudeyte
- Marquesses of Alcalá de la Alameda
- Marquesses of Alcañices
- Marquesses of Alcántara del Cuervo
- Marquesses of Alcedo
- Marquesses of Alcobendas
- Marquesses of Alconchel
- Marquesses of Alcornocal
- Marquesses of Aldama
- Marquesses of Aledo
- Marquesses of Alegrete
- Marquesses of Alella
- Marquesses of Alenquer
- Marquesses of Alfarras
- Marquesses of Algara de Gres
- Marquesses of Algarinejo
- Marquesses of Algecilla
- Marquesses of Alginet
- Marquesses of Alhama
- Marquesses of Alhendín de la Vega de Granada
- Marquesses of Alhucemas
- Marquesses of Aligre
- Marquesses of Almaguer
- Marquesses of Almanzora
- Marquesses of Almarza
- Marquesses of Almazán
- Marquesses of Alméiras
- Marquesses of Almenara-I
- Marquesses of Almenara-II
- Marquesses of Almendares
- Marquesses of Almodóvar del Río
- Marquesses of Almonacid de los Oteros
- Marquesses of Almonacir
- Marquesses of Almunia
- Marquesses of Alonso Martínez
- Marquesses of Alonso Pesquera
- Marquesses of Alorna
- Marquesses of Alós
- Marquesses of Alpens
- Marquesses of Alquibla
- Marquesses of Alsace
- Marquesses of Alta Gracia
- Marquesses of Altamira
- Marquesses of Altamira de Puebla
- Marquesses of Altavilla
- Marquesses of Alton
- Marquesses of Alventos
- Marquesses of Alvito
- Marquesses of Ambrugeac
- Marquesses of Amodio