Name
- Mediei, Antonio de', Marquis of Capistrano1
- Meuschen, Friedrich Christian, Naturalist1
- Mignoni, Neri Andrea1
- Moffat, John1
- Moffatt, T-1
- Monaco, Pietro, Engraver, of Venice1
- Monroy, Antonius, Magister Ordinis Pradicatorum1
- Nasini, Carlo Apollonio1
- Nori, Enrico de', Cardinal1
- Odoardi, Giacomo1
- Orologio, Antonio Carlo, Marchese, landowner, academic and geologist, 1751-18011
- Pasquali1
- Paulucci, Fabrizio, Cardinal, Papal Secretary of State1
- Peregrinus, Fabritius1
- Perier, P-1
- Philamundus, Raphael Maria1
- Piccolomini, Family1
- Pietro, Duke of Florence, son of Lorenzo the Magnificent1
- Pindemonte, Ippolito, Marchese, Cavaliere di Malta, Poet1
- Piombo, Sebastiano del, Painter1