Petronius of Bologna

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Saint Petronius
Born	Unknown
Died	ca. 450 AD
Venerated in	All Christianity
Major shrine	Basilica di San Petronio, Bologna, Italy.
Feast	4 October
Attributes	Depicted as a bishop holding a model of Bologna in his hand
Patronage	Bologna

Petronius (Italian: Petronio) (died ca. 450 AD) was bishop of Bologna during the fifth century. He is a patron saint of the city. Born of a noble Roman family, he became a convert to Christianity and subsequently a priest. As bishop of Bologna, he built the Church of Santo Stefano.