Keywords: Duchess of Northumberland La Belle Assemblee 1829.jpg Her Grace Charlotte Florentia Duchess of Northumberland Stipple engraving by T A Dean after Mrs Robertson Published by Whittacker Co in La Belle Assemblee new series No49 for January 1829 Proofs by M Colnaghi 23 Cockspur Street London http //www sandersofoxford com/describe id 15961 1829 T A Dean Category PD-old La Belle Assemblée 1820s portrait paintings Engraved portraits of women Ermine clothing in art Charlotte Percy Duchess of Northumberland Images from Sanders of Oxford Duchesses in the Peerage of Great Britain |