Name
- O'Connell, Daniel, of Add MS 401221
- O'Neill, Charles Henry St. John, Earl O'Neill1
- Parry, David Okeden, afterwards Parry-Okeden; of More Critchell1
- Peel, Robert, 2nd Baronet, Prime Minister, 1788-18501
- Peel, William Yates, MP; of Add MS 402291
- Pelham-Clinton, Henry Pelham, 4th Duke of Newcastle1
- Planta, Joseph, the younger, GCH, diplomatist and politician, 1787-18471
- Polignac, Jules Auguste Armand Marie, Prince, French statesman1
- Popkin, John Langharn, of Swansea1
- Pratt, John Jeffreys, 2nd Earl and 1st Marquess Camden, 1759-18401
- Reade, Philip, of Woodpark, near Mountshannon, county Clare1
- Robinson, Frederick John, 1st Earl of Ripon, politician and Prime Minister, 1782-18591
- Rolle, John, Baron Rolle, politician, ?1751-18421
- Rose, George Henry, MP1
- Ross, Charles, Lord of the Treasury1
- Scott, Thomas, 2nd Earl of Clonmell1
- Scott, William, Baron Stowell1
- Somerset, Granville Charles Henry, son of Henry 6th Duke of Beaufort1
- Sparks, Jared, historian, President of Harvard College, USA1
- Stephens, Richard, of Culver House, near Exeter1