Frances Bankes (1756–1847), Lady Brownlow, with Her Son, The Honourable John Cust (1779–1853), Later 1st Earl Brownlow, GCH, FRS, MP, 1783,George Romney
https://www.wikiart.org/en/george-romney/frances-bankes-1756-1847-lady-brownlow-with-her-son-the-honourable-john-cust-1779-1853-later-1783