(b. ca. 1285, Siena, d. ca. 1361, Siena)
Sienese painter, Simone Martini's brother-in-law and most able follower. They jointly signed the celebrated Annunciation (Uffizi, Florence, 1333) and their respective shares in it are uncertain. Several other works are signed by Memmi, including Madonnas in the Staatliche Museen, Berlin, and the Church of the Servites at Siena, showing his refined draughtmanship, delicate palette, and extremely sensitive modelling. He was not an innovator, but an indication of the high quality of his work is that several paintings are disputed between him and Simone. Like Simone, Memmi worked at the papal court at Avignon.