Donatello was an Italian sculptor born in 1386 in Florence who is known for his marble statue of St. Mark commissioned for the Orsanmichele church between 1411-1413. Michelangelo was an Italian sculptor, painter, architect, and poet born in 1475 in Tuscany who is renowned for his marble statues of David and Pietà in St. Peter's Basilica. The document provides background information on two renowned Italian Renaissance sculptors, Donatello and Michelangelo, including key biographical details and descriptions of some of their most famous sculptures.