It is not on the map - it is hidden.
The only Pokemon you can find in the old chateau are gastly and Rotom.
The old chateau is in diamond and pearl
The Old Chateau is where you find the Legendary Pokemon Rotom
ROTOM! you can find the plasma Pokemon in the tv of the old chateau!!!
there is no such thing as a new chateau but there is an old chateau in eterna forest.
There one-time ghosts in the old chateau, but these dont do anything.
no
Rotom and gastly
There is no basement of the Old Chateau.
the old chateu is only in Pokemon diamond pearl and platinum versions
You can catch Rotom.
no