Gregorio Preti

The return of the prodigal son Gregorio Preti

Pope Gregory XV Guercino

Procession of Pope Gregory I the Great at the castle of St. Angelo Giovanni di Paolo

Pietà, 1465-1470 Fernando Gallego

Portrait of the composer Gregorio Allegri Anonymous

Portrait of Gualtero del Prado Gortzius Geldorp

Saint Gregory the Great Pedro Berruguete

Cardinal Fernando Niño de Guevara, ca. 1600 El Greco

Portrait of Bartolomeo Prati Girolamo Mazzola Bedoli

Pope Saint Gregory VII (c. 1015/1028-1085), Anonymous

Portrait of Pope Gregory XV Guido Reni

Christ Disputing with the Doctors, c.1660's Gregorio Preti

Pope Gregory IX Canonising St. Francis in 1228, 1297-99 Giotto (c.1266-1337)

Pope Gregory XV Guercino

Sir Gregory Page-Turner, 1768 Pompeo Girolamo Batoni

called Guercino, Cardinal Francesco Cennini Giovanni Francesco Barbieri

Christ disputing with the Doctors, 1660s Gregorio Preti

Francesco Primaticcio, ca 1568 Anonymous

St. Gregory the Great, 1795-99 Francisco Jose de Goya y Lucientes

Saint Gregory the Great Anonymous

Saint Gregory the Great, ca 1690 Anonymous

Prospetto della Chiesa del SS. Salvatore, 1742 Fabio Berardi

Sottoscrivete al prestito (Signed quickly), 1917 Anonymous

Galileo Galilei Pietro Bettelini

Dwarf Gregorio, 1908 Anonymous