Whether drawing duchesses or portraying princes, John Singer Sargent (1856–1925) was high society’s leading portraitist. Flaunting a consummate technique, his luxurious canvases mirrored his subjects’ wealth. Yet beneath the dazzling veneer of works such as Madame X, The Daughters of Edward Darley Boit and Lady Agnew of Lochnaw lurks a much rawer world by far. Sargent certainly scandalised Parisian society and the city’s Salon with his frank depictions of human sexuality, yet he was even more modern than they might have feared. This talk charts the artist’s life and his prolific output, showing that, like the era he came to represent, Sargent was always on the cusp of seismic change.