Name
- Petty, William, 2nd Earl of Shelburne, 1st Marquess of Lansdowne, formerly Fitzmaurice, 1737-18052
- Philip IV, of Spain, 1605-16652
- Philip V, King of Spain2
- Pole-Carew, Reginald, Major-General KCB2
- Porten, Stanier, Under Sec of State, Knight 17722
- Porteus, Beilby, 1787 Bishop of Chester and of London2
- Pratt, Charles, 1st Earl Camden2
- Price, Eli Morgan, Reverend2
- Princes of Wales2
- Privy Purse2
- Privy Seal2
- Pye, Robert, Kt, Auditor of the Exchequer2
- Randolph, Thomas, ambassador, 1523-15902
- Robinson, Mary Jemima, wife of Thomas, Baron Grantham2
- Rouse, Ezekiel2
- Royal African Company2
- Royal College of Physicians, London2
- Royal Society of London, 1660-2
- Rupert, Prince and Count Palatine of the Rhine; Duke of Cumberland, royalist army and naval officer, 1619-16822
- Sackville, Richard, 5th Earl of Dorset2