Name
- Odoardo, Duke of Parma1
- Orléans, Anne Marie Loulse, Duchesse de Montpensier1
- Orléans, Elizabeth Charlotte, 2nd wife of Philip I, Duke of Orleans1
- Orléans, Isabelle, Mlle d'Alençon1
- Orléans, Philippe, Duc d'; of Add MS 203151
- Orsini, Domenico, Cardinal, Abbate e Commendator della Badia di S Benedetto in Salerno, Duke of Gravina1
- Orsini, Flavio, Duca di Bracciano1
- Pamphili, Benedetto, Cardinal writer1
- Pamphili-Aldobrandini, Violante Faschinetti, wife of G B, Prince of Caspinetti1
- Parker, Matthew, archbishop of Canterbury and patron of scholarship, 1504-1575, http://isni.org/isni/000000...1
- Parliament1
- Petrucci, Pier Matteo, Cardinal1
- Pio, Carlo, Cardinal1
- Placida Agnesa dell' Agnello Gies-, Prioress of the Carmelites of Regina Coli1
- Plessis, Louis François Armand de Vignerot, Duc de Richelieu, army officer, diplomat and statesman, 1696-17881
- Radcliffe, Charles, self-styled Earl of Derwentwater1
- Ranuzzi, Angelo Maria, Cardinal1
- Rinaldo, Duke of Modena and Ferrara, Cardinal1
- Rospigliosi, Felix, Cardinal1
- Salazar, Pedro, Cardinal1