Keywords: Polonius' (King George III; Charlotte Sophia of Mecklenburg-Strelitz; James Cecil, 1st Marquess of Salisbury) by James Gillray.jpg Artwork Creator James Gillray This set of images was gathered by User Dcoetzee from the National Portrait Gallery London website using a special tool All images in this batch have been confirmed as author died before 1939 according to the official death date listed by the NPG See source website for additional information 1795 hand-coloured etching mm 247 349 Institution NPG D12523 other versions PD-old-100 James Gillray 18th-century caricatures in the National Portrait Gallery London 1795 cartoons Caricatures of George III of the United Kingdom Charlotte of Mecklenburg-Strelitz James Cecil 1st Marquess of Salisbury |