Quirinus of Neuss, Roman martyr and saint
Quirinus of Neuss (German: Quirin, Quirinus), sometimes called Quirinus of Rome (which is the name shared by another martyr) is venerated as a martyr and saint of the Catholic and Eastern Orthodox churches. His cult was centered at Neuss in Germany, though he was a Roman martyr.
According to the Catholic Encyclopedia, a Roman martyr named Quirinus was buried in the Catacomb of Prætextatus on the Via Appia. The Martyrologium Hieronymianum (ed. De Rossi-Duchesne, 52) mentions Quirinus' name and place of burial. The Itineraries to the graves of the Roman martyrs (Giovanni Battista De Rossi, "Roma sotterranea", I, 180–1) also mention these two pieces of information.The Martyrologium Hieronymianum assigns him under the feast day of April 30, the date that appears in the catalogue of Roman martyrs of the 4th century.