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.