Simone Martini | National Gallery of Art https://www.nga.gov/artists/1875-simone-martini
Probably born in Siena, perhaps in 1284 according to uncertain information transmitted by Giorgio Vasari ,[1] Simone must already have been a famous artist when he was commissioned to paint the Maestà fresco in the Sienese seat of government, the Palazzo Pubblico. Signed and dated 1315, it is the earliest surviving of his ascertained works.
homeland: the Anjevin court in Naples ordered from him the panel Saint Louis of Toulouse