Cattedrale Matropolitana di San Pietro is the cathedral of Bologna, entitled “Metropolitana” in 1582 by Pope Gregorio XIII, who also turned the diocese of Bologna into an archdiocese. In the past, there was a baptistery in front of the façade and the origins of the building may be traced back to the beginning of the Christian era (even though it is said that the church already existed during the 10th century).
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