Simone Martini was an influential Italian painter born around 1284 in Siena. He is best known for his elegant and detailed works that exemplify the Gothic style. Martini's art often features religious themes, vibrant colors, and graceful figures, making him a key figure in the development of early Renaissance painting. One of his most famous works is the Annunciation, which showcases his skill in creating depth and emotion. Martini's style had a significant impact on later artists, and he is celebrated for his contributions to the Sienese School of painting, helping to shape the visual culture of his time.