Name
- Morris, Lewis, alias Llywelyn Ddu1
- Morys ab Howel ab Tudur1
- Morys ab Robert, o'r Bala1
- Owain Gwynedd, alias Owain Efan1
- Owain ab Llywelyn ab y Moel1
- Owain ab Sion ab Rhys ab Syr John1
- Owen, Thomas, o Lanelwy1
- Paul, Saint, of Add MS 118801
- Philip, William1
- Phylip Emlyn, Syr1
- Pilate, Pontius, governor of the Roman province of Judaea, AD 26-36, Early 1st century1
- Powel, Dr1
- Price, John Prichard1
- Price, Thomas, of Plas Jolyn1
- Prichard, Rice1
- Prichard, Samuel1
- Principality of Wales1
- R- ab Rhisiart, Vicar of Llan Ymddyfri1
- Rhisierdyn1
- Rhys Goch Eryri1