Leonardo da Vinci (1452–1519) The Lady with an Ermine (Portrait of Cecilia Gallerani) oil and tempera on panel 54.8 x 40.3 cm. (21.5 x 15.8 in.) painted circa 1489 Collection of Czartoryski Museum, Kraków, Poland This portrait by Leonardo da Vinci was commissioned by the Duke of Milan, Ludovico Sforza, for whom he worked as ...