Name
- Aislabie, John, Chancellor of the Exchequer1
- Aislabie, William, landscape designer and landowner, ? 1699-17811
- Alençon, Anne, Marquise of Montferrat, widow of William IX, Marquis of Montferrat, 1492-15621
- Allen, J-, of Add MS 355841
- Allott, Richard, Dean of Raphoe1
- Alvarez de Toledo, Juan, Cardinal, Bishop of Burgos and Archbishop of Compostella, 1488-15571
- Amherst, William Pitt, 1st Earl Amherst of Arracan, diplomatist and Governor-General of Bengal, 1773-18571
- Andrewes, John, of Add MS 355851
- Anholt, Johann Jakob, Freiherr von1
- Annesley, Arthur, 1st Earl of Anglesey1
- Annesley, Arthur, 8th Viscount Valentia; 1st Earl of Mountnorris 17931
- Annesley, Francis, of Add MS 356811
- Annesley, Richard, 6th Earl of Anglesey1
- Anstruther, Robert, Knight, diplomat and politician, 1578-16451
- Antinori, Gaetano, Cavaliere, imperial Minister at Florence1
- Aragona Tagliavia, Carlo, Duke of Terranova, 1530-15991
- Aranjo, Emanuel1
- Archer, Thomas, junior1
- Arostegui, Pedro Clemente, Bishop of Osma in Spain1
- Artee, John1