Name
- Hyffernan1
- Hébert, François, Bishop of Agen1
- Imperiali, Cosimo, afterwards Governor of Rome1
- Innocent XII, Pope1
- Isnardi de Castello, Angelo Carlo Morizio, Marchese di Caraglio, Governor of Turin1
- Isolani, Rizzardo, Governor of Benevento1
- Iturbide, Filippo, Archbishop of 'Sida'1
- Jacobutij, Giacomo, Auditor of the Papal Criminal Court, and Governor of Ravenna1
- Jacoponi, Carlo1
- Janson, Toussaint, Cardinal, French Ambassador at Rome, 1631-17131
- Jarente, Abbé de Cabanes1
- Jeffery Captain, Walter1
- Jolley, Andreas, Definitor Fratrum Minorum Angliæ1
- Jouvency, Joseph, Pére1
- Kelly, of Add MS 203121
- Kollonitz, Sigismund, Card1
- Königsegg, Leopold William, Count1
- L'Escure de Valderil, Jean-François, Bishop of Luçon1
- L'Espine, Louis François, Chevalier de Malthe1
- La Baume, ? Louis François, Comte de Suze1