© National Portrait Gallery, London
Horatio Walpole, 1st Baron Walpole of Wolterton
by William Holl Sr, published by Harding & Lepard, after William Derby, after Jean Baptiste van Loo
stipple engraving, published 1 January 1831
15 in. x 10 1/2 in. (381 mm x 267 mm) plate size; 17 3/8 in. x 12 1/4 in. (440 mm x 312 mm) paper size
Purchased, 1966
NPG D38509
