(Saint) Virgin (May 31) (1st century) A Roman virgin, converted to Christianity by the Apostle Saint Peter, and who afterwards ministered to him until her death at an early age. The name Petronilla (a diminutive of Petronia) from its similarity with the derivatives from Peter (Petrus), probably led to the belief that she was Saint Peter‘s daughter, whereas she was only his spiritual or adopted child.
- Monks of Ramsgate. “Petronilla”. , 1921. CatholicSaints.Info. 21 October 2016. Web. 23 March 2017. <>