Son of Saint Gregory of Nazianzen the Elder and Saint Nonna. Brother of Saint Gorgonia and Saint Gregory of Nazianzen. Studied in Caesarea, Cappadocia, and Alexandria, Egypt. Noted and skillful physician. He moved to Constantinople c.355 where he became wealthy in his profession. Served in the court of Emperor Julian the Apostate who tried to get Caesarius to renounce his faith; when he refused, he was exiled. From there he moved to Bithynia where he served Emperor Valens as quaestor. Confirmed bachelor, though he had offers to marry into nobility. Upon his death he donated his entire estate to the poor.
- c.329 in Arianzus
- c.369 of natural causes
- interred at Nazianzus
- “Saint Caesarius of Nanzianzen“. CatholicSaints.Info. 28 April 2015. Web. 9 October 2015. <>