Sir Thomas Gainsborough
(1727-1788)
‘Lady Mary Bruce, Duchess of Richmond’, 1711/16” × 11¼”, G. C. Klackner, 1922, 425 copies @ 8 gns
Lady Mary Bruce, daughter of 3rd Earl of Ailesbury by his 3rd wife (the only daughter of 4th Duke of Argyll), married the 3rd Duke of Richmond in 1757. She died in 1797.