or Lugdunum, in Ancient Geography, a town of the Convenae, a people of Gallia Narbonensis, at the foot of the Pyrenees. Its origin was owing to the Sertorian war, Pompey compelling the robbers of the Pyrenees and fugitive slaves to settle there, (Pliny.) It stood near the head of the Garonne. Now St Bertrand, in Gascony. E. Long. 30. Lat. 43. 15.