San Donnino, Piacenza
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San Donnino or San Donnino Martire is a Romanesque style Catholic church located at the intersection of Largo Cesare Battisti and Vicolo San Donnino in the historic center of Piacenza, Region of Emilia Romagna, Italy. Little is known of San Donnino (St Domninus), to whom the church is dedicated, as are other churches elsewhere, including Pisa. A St Domninus appears in early Church sources and some identify him with St Domninus of Fidenza, to whom Fidenza Cathedral is also dedicated. For some the Piacenza Domninus was a deacon of Piacenza in the early Christian period.[1]