Born in 1386 Donatello was the greatest Florentine sculptor of his age,and had worked in the studio of Lorenzo Ghiberti.
In his early years he worked in Rome with Fillipo Brunelleschi, escavating and studying in the ancient city. The lessons that these two artistic giants learned in Rome became important for the future development of Italian art.
Ghiberti is famous for winning the competition to design the doors for the Baptistery in Florence. The artist assisted Gilberti with some of the work on these doors and had also received artistic training in a goldsmith's workshop. In fact Donatello had earned a living during his time in Rome by working in goldsmiths shops.
The statue of St George, made in about 1420, is one of the most important works in his development. In this work the sculptor had broken with the Gothic style of statues and their solemn rows of saints. St George is totally real, steadfast, and determined in his defiance of any enemy that may approach.
(Section taken from http://www.italian-renaissance-art.com)
Sample of Artist work
Links to Artist work and information