Marcel Duchamp famously drew a (*) moustache on a postcard of a painting this figure in L.H.O.O.Q.
She's not Marilyn Monroe, but Andy Warhol's Thirty are Better Than One is a silkscreen of this person. In another painting, a winding path is seen beside this woman's right arm, while a bridge crosses a stream above her left shoulder. Marcel Duchamp famously drew a (*) moustache on a postcard of a painting this figure in L.H.O.O.Q. That painting employs its artist's famous sfumato technique, and was stolen in 1911 by Vincenzo Peruggia. Vasari claims that this woman was the wife of Francesco del Giocondo. For ten points, identify this woman, whose arms-crossed, enigmatic pose is depicted in a Leonardo da Vinci painting.
She's not Marilyn Monroe, but Andy Warhol's Thirty are Better
{Mona Lisa} (prompt on any specific names who may be the Mona Lisa, like Lisa Gherardini)