Promoted regimental lieutenant-colonel on 21 July 1813, after the battles of Nivelle and the Nive, Elphinstone commanded the engineers at the crossing of the Adour and the siege and battle of Bayonne.
Located in the watershed of the Adour, the northern part of the eastern border of the commune is the Bidouze which flows north to join the Adour west of Peyrehorade.
Until 1993, it provided the stone for the cemetery, Ciments de l'Adour, in Boucau.
These people settle mainly in the lowlands, near the rivers Ebro and Adour, in the regions of Araba, Navarre, Labourd and Lower Navarre.
Though delayed by congestion at the bridge over the Adour, Soult's attack against the British positions on the ridge around Saint-Pierre-d'Irube was powerful enough for one British lieutenant colonel to flee the field, taking his battalion (1/3rd Buffs Foot) with him.
Eventually, after a protracted fight, Bernard was defeated at the Battle of La Castelle (fought between Cazères and Grenade on the Adour) and had to relinquish Gascony to Guy Geoffrey for 15,000 sous.
In France, the storm caused widespread flooding in the south west, causing considerable damage in the river basins of the Garonne and Adour and flooding the city of Bordeaux.
Aire, on the river Adour, the home of St. Philibert, numbered among its bishops during the second half of the sixteenth century François de Foix, Count of Candale, an illustrious mathematician, who translated Euclid and founded a chair of mathematics at the University of Bordeaux.