[1] The site, occupied since protohistory, was transformed into a castrum in the Middle Ages and later into a castle.
In 1373, the King of France, Charles V, sent his brother, Louis I the Duke of Anjou, to besiege the castle and take it from the English.
The king gave the castle to the Count of Armagnac who saw it disputed by Gaston Fébus, the Prince of Foix and Béarn.
In 1862, M. Jubinal, député of Hautes-Pyrénées, bought the castle intending to create a historical museum there, but died before achieving his aim.
The keep is constructed on a flat base of pebble concrete interspersed with lines of bricks, in a typical Gallo-Roman style.