Petrus

Petrus is a Latin name derived from the Greek meaning "rock", and is the common English prefix "petro-" used to describe rock-based substances, like petros-oleum or "rock oil." As the source of Peter, it is a common name for people from antiquity through the medieval era, and may refer to one of the following:

As a name:

• Petrus, Saint Peter, the first pope
• Priest Petrus, 5th century Illyrian priest
• Petrus Abailardus, Latin name for Peter Abelard
• Petrus Alfonsus, Spanish Jewish writer
• Petrus Augustus, curopalates
• Petrus Aureolus
• Petrus Baldus de Ubaldis
• Petrus Bernardinus, Florentine sectarian
• Petrus Canisius, 16th century German Catholic theologian and polemicist
• Petrus Capuanus or Peter of Capua, an Italian scholastic
• Petrus Christus, (ca. 1410/1420 - ca. 1475/76), Dutch painter
• Petrus de Abano or Pietro d'Abano (1257 – 1315) Italian philosopher and doctor
• Petrus de Amalfia, 14th century Italian music theorist
• Petrus de Cruce, late 13th century composer and author, one of the most significant and influential composers of the late ars antiqua
• Petrus de Natalibus, Venetian hagiographer
• Petrus de Picardia, 13th century French music theorist
• Petrus de Sancto Dionysio, 14th century French music theorist
• Petrus Diaconus, several people
• Petrus frater dictus Palma ociosa, 14th century French music theorist, one of the first to illustrate current musical innovations
• Petrus Jacobus Joubert
• Petrus Le Viser, late 13th century musician, important in the history of tempo and rhythm
• Petrus optimus notator, 13th century musical scribe in Paris, important for notating Notre Dame polyphony
• Petrus Peregrinus = Peter de Maricourt, 13th century French writer on magnetism and astrolabes
• Petrus Ramus
• Petrus Trothun Aurelianis, 13th century singer of the Notre Dame School

Other:

• Petrus (genus), a genus of ray-finned fish
• Lars Petrus, speedcuber and inventor of the Petrus method
• Château Pétrus, a Pomerol Bordeaux wine producer
• Ubi Petrus, Ibi Ecclesia is a popular Roman Catholic motto.
• Tu es Petrus is a music piece of Franz Liszt.