David

Donatello, David, c. 1440s, bronze, 158 cm, Museo Nazionale del Bargello, Florence

David is a biblical hero who became the king of Israel.  When he was young, the army of Saul fought the Philistines, and no one would challenge the giant Goliath.  While only a shephard, David accepted the challenge, and refused armor.  Using his slingshot, he hit the giant with five stones, and cut off his head using Goliath's own sword.  

David can portrayed in several ways, typically either slaying Goliath, as is seen here, or as king.  The story of Bathsheba is a very popular scene, and David sometimes makes an appearance.  He is also often shown as a musician, with a harp or lyre.