The apparition of a woman in a bloodstained dress reputedly haunts Upton Court. She was most commonly reported to walk on Friday nights. She has been described as wearing "a long cream or white dress" and is crying pitifully. She is occasionally reported in the house as well.
For some reason, the author Matthews lists this apparition as being in Marlow, which is in Buckinghamshire. Yet all the research seems to point here as the correct location.
For further information, please read Haunted Britain by Antony D. Hippisley Coxe and Haunted Places of Bedfordshire and Buckinghamshire by Rupert Matthews.