Original: Standard Occitan, also called Occitan large (i.e. "wide Occitan") is a synthesis which respects and admits soft regional adaptations (which are based on the convergence of previous regional koines). So Occitan can be considered as a pluricentric language.
Simplified: The Occitan language (Occitan: Occitan, French: Occitan) is a romance language spoken in parts of southern France, Spain, Italy and Monaco.