Name
- Odo of Cluny, Saint, Abbot of Cluny, 879-942, http://isni.org/isni/000000... http://viaf.org/viaf/591995451
- Origen, c 185-c 254, http://isni.org/isni/000000... http://viaf.org/viaf/951553221
- Ortell, Joachim, diplomat, d. 15901
- Osbern of Canterbury, c 1050-c 1090, http://isni.org/isni/000000... http://viaf.org/viaf/665695221
- Osbert of Clare, Prior of Westminster, d after 1139, http://isni.org/isni/000000... http://viaf.org/viaf/1988753941
- Paget, William, 1st Baron Paget, Lord Privy Seal, 1506–1563, http://isni.org/isni/000000...1
- Pallavicino, Horatio, merchant and diplomat, 1540-1600, http://isni.org/isni/000000...1
- Parker, Sir Henry, ninth Lord Morley, d 15551
- Paschal II, Pope, d 1118, http://isni.org/isni/000000... http://viaf.org/viaf/791435331
- Paulet, Amias, administrator and landowner, 1532-1588, http://viaf.org/viaf/884893871
- Pelagius, c 360-c 418, http://isni.org/isni/000000... http://viaf.org/viaf/542041361
- Percy, Henry Algernon, 6th Earl of Northumberland, c 1502-15371
- Percy, Thomas, 7th Earl of Northumberland, 1528-1572, http://isni.org/isni/000000...1
- Peter of Poitiers, Chancellor of Paris, c 1130-1205, http://isni.org/isni/000000... http://viaf.org/viaf/175798481
- Philip William, Prince of Orange; Count of Nassau, 1554-16181
- Philippe de Thaon, fl 1113-1150, http://isni.org/isni/000000... http://viaf.org/viaf/516777121
- Placitus, Sextus, fl c 370, http://isni.org/isni/000000... http://viaf.org/viaf/253996691
- Plinius Secundus, Caius, also known as Pliny the Elder, 23-79, http://isni.org/isni/000000... http://viaf.org/viaf/1002191621
- Polemius Silvius, fl 5th century, http://isni.org/isni/000000... http://viaf.org/viaf/2537952081
- Poncher, Etienne, Bishop of Paris1