A lot is known about his life and career but little is known about his character and personality. Donatello never married and seems to be a man of 'simple tastes'. Patrons often found him hard to deal with and he demanded a lot of artistic freedom.

Donatello, born Donato di Niccolò di Betto Bardi, was the son of Niccolo di Betto Bardi, a Florentine wool carder. It is not known how he started his career but probably learned stone carving from one of the sculptors working for the cathedral of Florence about 1400. Some time between 1404 and 1407 he became a member of the workshop of Lorenzo Ghiberti who was a sculptor in bronze. Donatello's earliest work was a marble statue of David. The "David" was originally made for the cathedral but was moved in 1416 to the Palazzo Vecchio, a city hall where it long stood as a civic-patriotic symbol. From the sixteenth century on,

Donatello was not doing much work the last three years at Padua, the work for the S. Antonio altar was unpaid for and the Gattamelata monument not placed until 1453. Offers of other places reached him from Mantua, Modena, Ferrara, and even Naples, but nothing came of them. He was clearly passing through a crisis that prevented him from working. He was later quoted as saying that he almost died "among those frogs in Padua." In 1456 the Florentine physician Giovanni Chellini noted he had successfully treated the master for a protracted illness. Donatello only completed two works between 1450 and 1455, the wooden statue "St. John the Baptist" and a figure of Mary Magdalen. Both works show new reality; Donatello's formerly powerful bodies have become withered and spidery. When the " Magdalen" was damaged in the 1966 flood at Florence, restoration work revealed the original painted surface, including realistic flesh tones and golden highlights throughout the saint's hair.

the gigantic "David" of Michelangelo, which served the same purpose, eclipsed it. More of Donatello's early works which were still partly Gothic are the impressive seated marble figure of St. John the Evangelist for the cathedral and a wooden crucifix in the church of Sta. Croce.

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Whether the "David" was requested by the Medici or not, Donatello worked for them (1433-1443), producing sculptural decorations for the Old Sacristy in S. Lorenzo, the Medici church. Works there included ten large reliefs in colored stucco and two sets of small bronze doors that showed saints.

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