Son of a patrician senator named Tertulus. Disciple and spiritual student of Saint Benedict of Nursia. Friend of Saint Maurus, who saved him from drowning. Accompanied Benedict to Monte Cassino, which was given to Benedict by Tertulus. Known through the second Dialogue of Saint Gregory the Great. Many legends grew up around Placid.
- Abbé Stéphane Ansart
- Book of Saints, by the Monks of Ramsgate
- Catholic Encyclopedia
- New Catholic Dictionary
- Our Sunday Visitor’s Encyclopedia of Saints
- “Saint Placid“. Saints.SQPN.com. 6 February 2013. Web. 22 May 2013. <>