Because that's what it looks like, obviously. Taken at Blickling Hall today when there was a brief break in clouds. Blickling Hall was completed in 1629 and was built on the site and possibly using bits of the Boleyn's family home. On the anniversary of her death Ann Boleyn (whom the guide claims was born here not at Hever Castle the Boleyn's other home) rides up to the front door in a coach pulled by headless horses with headless horsemen and the lady herself holds her head in her lap.
Now that would be a sight.
More pics of Blickling and it's stunning grounds at the usual place