Saint Petronilla, virgin of Rome, honored as a spiritual daughter of the Apostle Peter.
Petronilla was a Christian virgin of Rome in the first century, buried in the catacomb of Domitilla, whom tradition calls the daughter of the Apostle Peter, in the sense that she was brought to faith by him. Tradition relates that she refused a pagan suitor and died after fasting and prayer.
Her memory has been honored in Rome since the earliest centuries.
Feast day
On the New Calendar, Petronilla of Rome is commemorated on May 31. Churches on the Old (Julian) Calendar keep the feast on June 13 of the civil calendar.
Who celebrates a name day
People with these names keep their name day on this feast:
Also commemorated on May 31

Eusebios and Charalambos
Martyr, Ευσέβιος και Χαράλαμπος
Holy Martyrs Eusebios and Charalambos, burned for their faith.
Eustathios of Constantinople
Hierarch, Ευστάθιος Κωνσταντινουπόλεως
Saint Eustathios, Patriarch of Constantinople.
Five Martyrs of Ascalon
Martyr, Πέντε Μάρτυρες εν Ασκάλωνι
The Five Holy Martyrs who suffered at Ascalon in Palestine.
Co-workers of the Apostle Paul
Apostle, Συνεργοί του Αποστόλου Παύλου
Synaxis of the holy men and women named as fellow-laborers of the Apostle Paul in his epistles.
Hierotheos the New
Hierarch, Ιερόθεος ο Νέος
Hieromartyr Hierotheos the New, who suffered under the Turks.