I wouldn't advise it.
We took our chihuahua and she loved it. They even had a dish with water at the doorway
The castle has narrow stairs and walkways; bringing it into the structure wouldnt be enjoyable for you or your dog. However, the outside area might be a nice area to walk. Just be careful; the builder died on the property out back. You could unknowingly be one leg lift away from offending the staff.
Dunno for certain but I wouldn't unless it is a service dog.
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