Lapurdum
Lapurdum in Gallia. This place is only mentioned in the Notitia of the Empire, which fixes it in Novempopulana; but there is neither any historical notice nor any Itinerary measurement to determine its position. D'Anville, who assumes it to be represented by Bayonne, on the river Adour, says that the name of Bayonne succeeded to that of Lapurdum, and the country contained between the Adour and the Bidasoa has retained the name of Labourd. It is said that the bishopric of Bayonne is not mentioned before the tenth century. The name Bayonne is Basque, and means port.
It seems probable that Lapurdum may have been on the site of Bayonne; but it is not certain.
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.