Simplify the following text for a Grade 6 native English-speaking person.
Original: ChÃ cents teau-d ` Olonne is a commune of the VendÃ e department in the Pays de la Loire region in western France .
Simplified: ChÃ cents teau-Guibert is a commune . It is found in the region Pays de la Loire in the VendÃ e department in the west of France .