Name
- Honorati, Carlo?1
- Innocent XI, Pope1
- Jacoponi, Francesco Angelo, Bishop of Amelia1
- James II, Duke of Brunswick-Lüneburg1
- Kelly, Edmund, of Add MS 346381
- Knezevich, Baron, Governor of Port Ferrajo1
- La Tour d' Auvergne, Godefroi Charles Henri, Prince de Turenne1
- Laboureur, Maximilien1
- Lacchini, Alessandro, Uditore1
- Lambertini Bovio Silvestri, Giulia, Marchesa1
- Lascaris, Giorgio, Vicar of St Peter's on the Vatican1
- Lazary, Abbé, Aumonier honoraire du Roi de Sardaigne1
- Legnani, Girolamo1
- Leti, Giovanni Battista1
- Liberati, Giuseppe, Arciprete di Monterosi1
- Livizzani, Carlo, Cardinal; of Add MS 346361
- Locatelli, Francesco Maria, Cardinal, Bishop of Spoleto1
- Louis XIV, King of France, 1638-17151
- Lucca, Angelo Maria di, Frate Minore Riformato1
- Lupino, Filippo, correspondent of Cardinal Henry Benedict Stuart, fl 17941