It's driving me mad because I can't remember the name of this place. We went to a wedding there some 12-15 years and the ceremony actually took place in one of the turrets. It was a splendid stately home type of place I think (we have drink on the lawn I seem to remember).
If my memory serves me correctly (which it quite possibly doesn't the place had a short name, possibly with a Z at the end. It was Chelmsford end of Essex I think.
TIA