Pocket Castle

We have been orienteering in Canklow Woods near Rotherham today and, en route to the start, we passed Boston Castle.  It was apparently built in 1773 by the 3rd Earl of Effingham, which is spooky because a street in our village is called Effingham Road.  Legend suggests that its name is linked to the Boston Tea Party but I particularly like this extract from the Castle website:
"When it was first erected, many pleasant parties partook of the hospitality of the noble owner.  They were plenteously regaled with wine and punch; but tea, the obnoxious beverage tea!  Was anathematized and forbidden; even ladies were not permitted to taste it, and, during the residence of the Earl of Effingham at Holmes Hall, Boston Castle was never defiled by its introduction."
The Castle is certainly in a wonderfully elevated position above, now, the industrial heartland of Sheffield, or what remains of it.  I wonder what the view was like for the Earl and what he would think of it today?