Portrait of Harriet, Viscountess Duncannon with Her Sons., John Hoppner, 1787
Henrietta (generally called harriet), viscountess duncannon (later countess of bessborough) and her two sons, frederick and john ponsonby (later the 4th earl of bessborough). Date: 1787. Medium: oil. Collection: Stansted Park. John Hoppner, Portrait of Harriet, Viscountess Duncannon with Her Sons (1787)