Author
- Odo, Saint, abbot of Cluny, 879-9421
- Oriol, Élodie1
- O’Donnell, C. Oliver1
- Palm, Erwin Walter1
- Palmieri, Matteo, 1405-1475.1
- Peltomaa, Leen Mari1
- Pesce, Gennaro.1
- Peters-Custot, Annick 1973-1
- Petris, Loris1
- Petrus, de Abano, ca. 1250-ca. 13151
- Pictorius, Georg, 1500 (ca.)-15691
- Pingree, David1
- Pingree, David, 1933-20051
- Princeton University. Art Museum.1
- Pseudo-Ptolemy1
- Pulido, Manuel Lázaro 1
- Pytlowany, Anna.1
- Päll, Janika.1
- Quiviger, François.1
- Raff, Thomas1