Lot Essay
The sitter was the daughter of Thomas Panton and second wife of Peregrine Bertie, 3rd Duke of Ancaster and Kesteven (1714-1778). They married on 27 November 1750 at Newmarket, therefore it is likely that the present portrait was painted as a wedding portrait. She brought a fortune of £60,000 to the union. She was Mistress of the Robes to Queen Charlotte between 1761 and 1793. She died in Naples on 19 October 1793.