Vasari’s First and Early Second Periods: the Franciscan Revolution

 Giotto di Bondone (1266/76–1337)

St. Francis Preaching to the Birds, fresco, ca. 1300 Patron: Franciscan Friars of Assisi (debated attribution to Giotto; in Basilica of St. Francis, Assisi)

 Giotto di Bondone (1266/76–1337)

Lamentation in The Scenes from the Lives of the Virgin and Christ, fresco, ca. 1305  Patron: Enrico Scrovegni (Scrovegni Chapel, Padua)

Giotto di Bondone (1266/76–1337)

Ognissanti Madonna, Tempera on Panel, ca. 1310 Patron: Humiliati Order (originally at the Church of the Ognisanti, now in the Uffizi, Florence) 

 Arnolfo di Cambio (ca. 1245–1310)

Palazzo della Signoria (Palazzo Vecchio), Rusticated Stone, begun 1299 Patron: Commune of Florence

 Arnolfo di Cambio (ca. 1245–1310)

Crossing and Nave of the Cathedral/Duomo (Santa Maria del Fiore), Polychrome marble, 1294– ca. 1418; With architect Francesco Talenti (ca. 1300–1369) Patron: Workshop of the Duomo/Opera del Duomo and Arte della Lana/Guild of the Wool Workers

Giotto di Bondone (1266/76–1337) with Francesco Talenti (ca. 1300–1369)

Bell tower, Polychrome marble, 1334–ca. 1368, Patron: Workshop of the Duomo/Opera del Duomo and Arte della Lana/ Guild of the Wool Workers

Baptistery Doors Competition, 1401. Patron: the Opera del Battistero/ Workshop of the Baptistery and Arte di Calimala/Guild of the Clothe Merchants

Lorenzo Ghiberti (1378–1455)  

The Sacrifice of Isaac, bronze relief sculpture, 1401 (originally on Baptistery door, now in the Bargello Museum) 

Baptistery Doors Competition, 1401. Patron: the Opera del Battistero/ Workshop of the Baptistery and Arte di Calimala/Guild of the Clothe Merchants

Filippo Brunelleschi (1377–1446)  

The Sacrifice of Isaac, bronze relief sculpture, 1401 (Bargello, Florence)