Barraux castle is one of the oldest bastioned forts in the Alps still in its current state.
The construction of this fort, then called Fort of Saint-Barthélémy, began on August 24, 1597 by the Duke of Savoy Charles-Emmanuel I to defend the entrance to the Grésivaudan valley.
After several modifications, it was deeply altered by Vauban from 1692 to 1698.
The fort also played the role of prison, notably during the French Revolution and during the two world wars.
Decommissioned in 1985, Fort Barraux was listed as a historic monument on October 11, 1988 after its acquisition by the town of Barraux and then classified by decree of August 23, 1990.