Petronilla from a Latin name, a diminutive of Petronia, the feminine form of Petronius. This was the name of an obscure 1st-century Roman saint, later believed to be a daughter of Saint Peter.
Saintly namesake: Saint Petronilla is an early Roman saint venerated as the spiritual daughter of Saint Peter. She is remembered for her faith and is considered a patron of mountaineers. (May 31 · 1st century)
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Names related to Petronilla through nicknames, language, or historical forms.