For 10 points, name this sculptor whose bronze works include a juvenile David and the equestrian Gattamelata.
This artist carved a schiacciato relief of a saint slaying a dragon into the pedestal of a niche containing a sculpture of that saint. He used perspective to show rows of arches in a relief sfor the Baptistery Font in Siena depicting the Feast of Herod. The aforementioned sculpture of St. George was one of two that this man made for (*) Orsanmichele, the other being of St. Mark. One of his sculptures features a hoof standing on an orb and a man with a baton in his right hand; that seated man is Erasmo da Narni. Another of his statues depicts a youthful Old Testament figure in contrapposto wearing only a cap standing on a severed head and holding a sword. For 10 points, name this sculptor whose bronze works include a juvenile David and the equestrian Gattamelata.
This artist carved a schiacciato relief of a saint slaying a dragon into the pedestal of a niche containing a sculpture of that saint.
{Donatello} [or {Donato di Niccol·di Betto Bardi}]