Tommaso di Giovanni di Simone, commonly known as Masaccio, was an influential Italian painter of the early Renaissance. Born in San Giovanni di Cascia around 1401, he is celebrated for his pioneering use of perspective and naturalism in art. His works, such as the famous frescoes in the Brancacci Chapel, showcase his innovative techniques that laid the groundwork for future artists. Masaccio's style marked a significant departure from the flat, decorative forms of the Medieval period. He emphasized human emotion and three-dimensionality, which greatly impacted the development of Western art. His contributions helped to usher in a new era of artistic expression, influencing renowned artists like Michelangelo and Raphael.