Self-portrait by Jérôme-Martin Langlois, circa 1830. Bonsha Gopal Nandi, by Benjamin Hudson, circa 1854-62. Roundell Cecil Palmer, Viscount Wolmer, later 3rd Earl of Selborne, by Philip de László, 1916. Frederik VI of Denmark as Crown Prince Regent, by Jens Juel, 1787. Bon Vivant (self-portrait), by Miroslav Kraljević, 1912. Portrait of a Young Man, by Bronzino, circa 1550-55. Fiatal Fiú (Young Man), by Gyula Benczúr, circa 1880s. Victor Gay, by Alexandre Laemlein, 1845. Jean Cocteau, by…