"Variant of Petronio"
The name Petrona is commonly a female name from the "Spanish" origin.
Petrona is the feminine form of Petronio, the Spanish and Italian form of the Latin family name Petronius, borne by the Roman gens Petronia. It shares its opening letters with Petra and Pedro but is not derived from them; Petronius is a separate Roman family name. The feminine is recorded in Spanish-speaking countries, where Petronila also exists as a distinct name.
The pronunciation of Petrona is peh-TROH-nuh.