Donato Bramante was an influential Italian architect of the Renaissance, born in 1444 in Urbino. He is best known for his design of the Tempietto, a small temple in Rome that exemplifies classical architecture and harmony. Bramante's work marked a shift towards the use of symmetry and proportion, which became hallmarks of Renaissance design. Bramante played a significant role in the construction of St. Peter's Basilica in Vatican City, where he served as the chief architect. His innovative ideas and designs laid the groundwork for future architects, including Michelangelo, who later contributed to the basilica's completion. Bramante's legacy continues to influence architecture today.