The building has been standing for over 400 years, one of Britains best surviving Elizabethan town houses. It was built around 1585 for its original owner Robert Wynn. Both Robert's two marriages both called Dorothy both had premature deaths. Illness killed the first, but a tragic fall killed the second who was pregnant. Dorothy slipped by accident down the stairs with her child while she was pregnant with another, the doctor came and said she would die, when Robert returned home he found his wife and child both dead in the bed and the doctor had dissapeared never to be seen again. The doctor is rumoured to have suffocated in the chimney whilst trying to escape from her husband because he could not save Dorothy. Are Robert Wynn's second wife and the doctor who tried but failed to save her still trapped in the bedroom? In the bedroom a ghostly face is seen in the doorway, also the master of the house is said to walk here, he greets people with a ghostly 'hello'. Also two lady's have been seen on the second floor, one of them distressed, could this be both the wife's of Robert who had premature deaths? Alot of poltergeist activity is seen in Plas Mawr, also footsteps are heard and smells of tobacco is smelt by visitors. Touchings by unseen hands are felt, security doors swing open and a ghostly black cat has been seen running across the floor.