Donato di Niccolò di Betto Bardi, known mononymously as Donatello, was an Italian sculptor of the Renaissance period. Born in Florence, he studied classical sculpture and used his knowledge to develop an Early Renaissance style of sculpture. He spent time in other cities, where he worked on commissions and taught others; his periods in Rome, Padua, and Siena introduced to other parts of Italy the techniques he had developed in the course of a long and productive career. His David was the first freestanding nude male sculpture since antiquity; like much of his work it was commissioned by the Medici family.

Relief is a sculptural method in which the sculpted pieces remain attached to a solid background of the same material. The term relief is from the Latin verb relevare, to raise. To create a sculpture in relief is to give the impression that the sculpted material has been raised above the background plane. When a relief is carved into a flat surface of stone or wood, the field is actually lowered, leaving the unsculpted areas seeming higher. The approach requires a lot of chiselling away of the background, which takes a long time. On the other hand, a relief saves forming the rear of a subject, and is less fragile and more securely fixed than a sculpture in the round, especially one of a standing figure where the ankles are a potential weak point, particularly in stone. In other materials such as metal, clay, plaster stucco, ceramics or papier-mâché the form can be simply added to or raised up from the background. Monumental bronze reliefs are made by casting.