Why the Mona Lisa Is So Small

The Mona Lisa is 77 × 53 centimeters — about 30 by 21 inches. First-time visitors to the Louvre consistently report being surprised; the painting is famously smaller than their expectation. Several reasons stack up.

The panel is poplar, a wood common in Renaissance Tuscany because it was cheap, dimensionally stable, and available in the exact sizes used for domestic portraits. Leonardo began the painting around 1503, probably on commission from Francesco del Giocondo, a Florentine silk merchant, for a portrait of his wife Lisa. Domestic portraits went into studioli or bedrooms. They were not altarpieces. They were sized to fit next to a bed.

Leonardo kept the panel and worked on it, on and off, for more than a decade. He carried it to France when he moved into the manor at Clos Lucé in 1516 at the invitation of King Francis I, and the king bought it from Leonardo or his estate after his death in May 1519. It entered the French royal collection. The small size was already baked in; nobody was going to stretch a finished Leonardo onto a bigger panel.

The painting's modern fame is partly its own recursive story. It was stolen from the Louvre on August 21, 1911 by Vincenzo Peruggia, an Italian handyman who had briefly worked on its glass case. The two-year manhunt covered every major newspaper in Europe. By the time the panel returned in 1913, it had become the most famous painting in the world.

The reproductions that fixed it in public memory were printed postcard-sized. A lot of people met the image before they met the panel.