Hi Duckweed,
Good one eh! Well done! So this Charles was Hannah's and George's brother-in-law. Interestingly, I stumbled upon this Kemp , I recall as being a valet at some point, but didn't take much notice as he didn't seem to fit in with thr local arena

. There were many Kemps but Ido recall him as I thought what a different occupation it was- but more to the point if there was a castle as a common link.
Hope it is warmer there where you are than here- has rained- is about 4 degrees today and effectove reading of about - 4! Will not be moving too far away from the firebox!