Siena Cathedral
The Annunciation with St. Margaret and St. Ansanus is a painting by the Italian Gothic artists Simone Martini and Lippo Memmi, now housed in the Uffizi Gallery in Florence, Italy. It is a wooden triptych painted in tempera and gold, with a central panel having double size. Considered Martini's masterwork and one of the most outstanding works of Gothic painting, the work was originally painted for a side altar in the Siena Cathedral.