Name
- Orsini, Paolo Giordano, II, Duke of Bracciano1
- Orsini, Philip Joseph, Count of Rosenberg, Imperial Ambassador to Portugal, etc1
- Osorio de Castro, Jeronymo1
- Pacheco, Francisco, Bishop of Cordova1
- Padilla, Juan, Spanish Patriot1
- Pantaliano, Frei1
- Patino, José, Spanish Minister of State1
- Paul V, Pope1
- Pedro, Francisco, monk, missionary and writer, fl 1714-17301
- Pedro, Joào1
- Pereira de Castro, Sebastiao1
- Pereira de Sousa, Antonio1
- Pereira, Antonio, of Add MS 209071
- Pereira, Diogo1
- Pereira, Manoel, Bishop of Rio de Janeiro1
- Peter I, King of Portugal1
- Peter II, King of Portugal, and Maria I1
- Peter the Great, Emperor of Russia1
- Petrignani, Girolamo1
- Peña, Joannes a1