Long negotiated royal commissions with artists such as Canova, Westmacott, and Lawrence, and when the king decided to reconstruct Windsor Castle, Long drew up a brief which detailed every important feature of the castle as subsequently remodelled by Jeffry Wyattville, from the formation of the Grand Corridor to the heightening of the keep, and he also made a sketch-plan in 1823 for the sunken garden below the east terrace.
The church contains a monument to the fourth Duke, and opposite to it is a beautiful piece of statuary to the memory of his Duchess, by Westmacott.
The features are based on the portrait bust of Canning by Sir Francis Chantrey, who was "not at all pleased with the preference shewn to Mr. Westmacott".
P.W. Richards (Paul Westmacott Richards, 1908–1995), British botanist