Andrea Pisano, here with a marble relief panel from Florence's campanile depicting the Greek sculptor Phidias at work, also made the first set of bronze doors for Florence's Baptistery, between 1330 and 1336.

WSJ: Review: The Flowering of the Florentine Renaissance | 'Springtime of the Renaissance: Sculpture and the Arts in Florence 1400?C1460,' at the Palazzo Strozzi in Florence