Sir Charles Hanbury Williams

The portrait of Sir Charles Hanbury Williams by Mengs was one of the most
highly-valued paintings in the Stanisław August collection—in the
catalogues of the king’s collection the price 600 ducats was given. The
king had a special, personal affection for the painting, not only
because of its artistic quality, but, above all, because of the person
it portrayed. Sir Charles (1708–59), writer, poet and satirist, English
envoy to Dresden, Berlin and St Petersburg, was protector and friend to
the young Stanisław Antoni Poniatowski. They met in Berlin in July 1750,
and Williams became the mentor and guide for the then teenage Stanisław
who was just entering into high society. In 1751 the future king of
Poland was Williams’ guest in Dresden, where he most probably had the
opportunity to see the almost completed portrait of his mentor and
friend in Anton Raphael Mengs’ study. The painting must have made a huge
impression on Stanisław, because almost exactly 30 years later, in
1781, he asked the Polish envoy in Rome, Franciszek Bukaty, to find it
and buy it—as he expected, from Williams’ heirs. It turned out that the
portrait was in the possession of Richard Rigby, a friend of Williams’,
who in 1754 had also struck up an acquaintance with the young
Poniatowski, and due to his former attachment, agreed to give the
painting as a gift to the Polish King. Stanisław August reciprocated by
sending Rigby a portrait of himself. The portrait of Williams reached
Warsaw in 1782. [See D. Juszczak, H. Małachowicz, The Stanisław August Collection of Paintings at the Royal Łazienki. Catalogue, Royal Łazienki Museum, Warsaw 2016, no. 72, pp. 271–273.]