No. There is a Rotom in one of the TV's, though.
The old chateau is in diamond and pearl
The Old Chateau is where you find the Legendary Pokemon Rotom
The only Pokemon you can find in the old chateau are gastly and Rotom.
There is no location called the old plateau in Pokemon Pearl. There is, however, a location known as the Old Chateau.
Rotom? You Can Get It In The Old Chateau In Eterna Forest
the old chateu is only in Pokemon diamond pearl and platinum versions
he is a ghost along with a girl and an old woman who have apperently died
a gost i guess and the small red gril is one to
you find her in the old chateau
the girl and old guy are ghost i think you can talk to them
ROTOM! you can find the plasma Pokemon in the tv of the old chateau!!!
Ghosts are probably in the Old Chateau because that is one of the only places to catch them in Diamond, Pearl, and Platinum. Also, the Old Chateau is abandoned which explains why ghosts have taken up its residence. ~KKMG1