Leonardo da Vinci

http://www.public-domain-photos.org/leonardo-da-vinci-portrait-of-ginevra-de-benci.html

Ginevra de' Benci (1474), oil and tempera painting on wood by Leonardo da Vinci (1452-1519), 42 cm x 37 cm (16.54 in x 14.57 in), National Gallery of Art, Washington, D.C., USA

http://www.flickr.com/photos/renzodionigi/6063645318/