Mentioned from the 10th century, the village in 1050 two fiefs and Brassalay Monpoey (now called "Maupoey").
10th and 11th centuries, the parish Biron depends Abbey Sorde in the Landes. The village was then the seat of fierce fighting between the viscounts of Béarn and those of Dax, both eager to grant orthézien sector, which was the spearhead Biron. After struggles mercilessly Biron finally became possession béarnaise.
Domaine de Brassalay Children's Home has a social nature, and the Domaine de Maupoey, fortified house in Gaston Phoebus, is now a place of tourist accommodation.
