Original: The Vaucluse ( Provençal Occitan : Vauclusa in classical norm or Vau-Cluso in Mistralian norm ) is a department in the southeast of France , named after the famous spring , the Fontaine-de-Vaucluse .
Simplified: Vaucluse ( Occitan : Vauclusa or Vau-Cluso ) is a department in the southeast of France .