The duke's principal seat was Alnwick Castle in Northumberland, thus Stanwick Park was always a secondary residence.
The 1st Duke furnished the interior of the house with many works of art, including paintings by Canaletto.
She became so attached to the estate that she chose to be buried in the village church, which she had rebuilt by Salvin, rather than in the Northumberland vault in Westminster Abbey.
[5] The interior of the house contained many fine 18th-century features; before the demolition, some of the decorations and motifs were removed.
Museums in Roslyn, New York, and Toronto, as well as the collection of William Randolph Hearst are also alleged to have Stanwick rooms.