Petromantalum
Petromantalum in Gallia, is placed by the Antonine Itinerary on a road which runs from Carocotinum through Rotomagus (Rouen) to Lutetia (Paris). It also appears on a road from Caesaromagus (Beauvais) to Briva Isarae or Pontoise, on the Oise. a branch of the Seine. In the Table the name, is written Petrumviaco. The site is uncertain. The name bears some resemblance to that of Magni; but the site of Magni does not accurately correspond to the distances in the Itineraries.
From William Smith (ed.), Dictionary of Greek and Roman Geography. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.