Batalla de Bailén, cuartel de Dupont Historical milestone · Andújar, Campiña de Jaén, Jaén Image of Andújar, not of the place itself. In July 1808 the French general Pierre Dupont set up his headquarters in Andújar before being defeated nearby at Bailén, the first major defeat of a Napoleonic army in open battle. 1808 Photo: Julen Iturbe-Ormaetxe from Bilbao, Spain (CC BY-SA 2.0) What to see and do in Andújar