Piero della Francesca was an Italian painter and mathematician of the Early Renaissance, born around 1415 in Sansepolcro. He is known for his use of geometric forms and perspective, which brought a sense of depth and realism to his works. His paintings often feature religious themes and are characterized by their calmness and clarity. Some of his most famous works include the Baptism of Christ and the Flagellation of Christ. Piero's innovative techniques influenced many artists, and he is considered a key figure in the development of Renaissance art. His writings on perspective and geometry also contributed to the fields of art and mathematics.