Short answers, pulled from the story.
Donato, later known as Donatello, lived twenty-five miles from Florence in the town of Pistoia during his childhood. He stood accused of striking a German man with a wooden stick in January 1401 while visiting with his father Niccolò.
Donatello created six of the eight required figures between 1414 and 1423. The final piece finished in 1435 was known as Zuccone or Baldy.
Donatello entered a formal partnership with Michelozzo around 1425 that lasted nine years until a dispute caused by Donatello ended it. They collaborated on projects such as the Tomb of Antipope John XXIII inside the Florence Baptistery from 1425 to 1428.
Cosimo de' Medici probably commissioned the bronze David between 1434 and 1440 after returning from exile. It appeared on a column in the Palazzo Medici courtyard during a wedding in 1469 but likely predated construction of that building which started in 1444.
Bronze work for the Gattamelata monument finished in 1447 or 1448 though installation waited until 1453. The commission began immediately after Erasmo da Narni died in 1443 at the invitation of his heirs.
Donatello stayed in Florence until his death on the 13th of December 1466. He worked unable to produce much before dying according to Vasari records while designing stained glass for Florence Cathedral around 1434.