%0 Prints & Drawings %A Warren, Charles Turner 1767-1823 engraver. %I C. Cooks, No. 17 Paternoster Row %D 1791 %C London %G English %T Frederick Viscount Duncannon. %X Frederic Ponsonby, 3rd Earl of Bessborough, (1758-1844); Head & shoulders, to left, looking towrds front; oval. When Viscount Duncannon.