Name
- Aston, Walter, 1st Lord Aston of Forfar, courtier and diplomat, 1584-16393
- Carleton, Dudley, 1st Viscount Dorchester, diplomat, art collector and letter writer, 1573-1632, http://isni.org/isni/000000...3
- Digby, John, 1st Earl of Bristol, diplomat, 1580-16533
- Hay, James, Viscount Doncaster, 1st Earl of Carlisle3
- James VI and I, King of Scotland, England and Ireland, 1566-1625, http://isni.org/isni/000000...3
- La Fuente, Diego, Fray3
- Philip IV, of Spain, 1605-16653
- Trumbull, William, English Agent at Brussels3
- Villiers, George, 1st Duke of Buckingham, 1592-1628, http://isni.org/isni/000000...3
- Calvert, George, of Add MS 364442
- Charles I, King of England, Scotland and Ireland, 1600-16492
- Conway, Edward, 1st Viscount Conway and 1st Viscount Killutagh, politician, 1564-1631, http://viaf.org/viaf/170490562
- Digbye, W, correspondent of Sir Walter Aston, fl 1621-16222
- Habsburg, Ferdinand II, Emperor of Germany, 1578-16372
- Mendoza, Juan, Marques de la Ynojosa, Spanish Ambassador in England2
- Pimentel, Gaspar, 1st Duke of Sanlúcar, called the Count-Duke of Olivares, statesman and royal favourite, 1587-16452
- Sarmiento d'Acuña, Diego, Count Gondomar, Spanish Ambassador in London2
- Atye, He-1
- Borgia, Gaspar, Cardinal; of Add MS 364471
- Bruneau, Jaques, Spanish Agent in England1