in Gallia Aquitania, is placed by the Antonine Itin. on the road from Caesaraugusta, in Spain, to Beneharmum. [BENEHARMUM.] Iluro is between Aspaluca [ASPALUCA] and Beneharmum.
The modern site of Iluro is Oléron,
which is the same name. Oléron
is in the department of Basses Pyrénées,
at the junction of the Gave d'Aspe,
the river of Aspaluca, and the Gave d'Ossau,
which by their union form the Gave d'Oléron. Gave
is the name in these parts for the river-valleys of the Pyrenees.
In the Notitia of Gallia, Iluro is the Civitas Elloronensium.
The place was a bishop's see from the commencement of the sixth century.