I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
TOAL was from a public footpath that leads away from the castle area in roughly a south easterly direction.
2 things to note this flight was taken at 6-45am to avoid the possability of meeting visitors or anyone walking.
Also the castle is closed over the winter months which should make flying easier as there are no visitors
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 08/05/2022. It remains the responsibility of any pilot to check for any changes before flying at the same location.