I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Parking available in the town at several locations and at the castle itself. TOAL not allowed on English Heretage property, I found a place just outside the castle gates near to The Castle Inn
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 20/08/2022. It remains the responsibility of any pilot to check for any changes before flying at the same location.