Names
| Name | Total | Name | Total | Name | Total | Name | Total | Name | Total |
|---|---|---|---|---|---|---|---|---|---|
| Abenhall | 3 | Alsace | 2 | Aragon | 10 | Asturias | 4 | Austrasia | 1 |
| Abetot | 2 | Altdorf | 4 | Archard Alias Hayes | 4 | Athelaise | 1 | Austria | 5 |
| Abrahall | 1 | Anderson | 23 | Archiac | 1 | Aton | 2 | Autun | 1 |
| Acre | 1 | Andrew | 2 | Ardern | 2 | Auberie | 1 | Auvergne | 2 |
| Aigle, l' | 2 | Angelina | 1 | Arles | 4 | Aubigny, d' | 7 | Auxerre | 2 |
| Airgialla | 1 | Angelos | 4 | Arriaount | 1 | Audley | 2 | Auxonne | 3 |
| Albon | 7 | Angoulême | 14 | Artois | 2 | Audley, de | 1 | Avalgau | 2 |
| Aldeburgh | 2 | Anjou | 1 | Arundel | 1 | Aumale | 1 | Avranches, d' | 2 |
| Alemannia | 3 | Anjou, d' | 13 | Arwystli | 2 | Aunay | 2 | Aybar, de | 1 |
| Alençon | 2 | Apulia | 1 | Astashenko | 1 | Auria | 1 | Aylesbury | 6 |
| Allen | 1 | Aquitaine | 13 | Aston | 4 | Auriate | 1 | - | - |