In December 1408 Jacopo, having returned to Siena, signed a contract to build a new fountain in the Piazza del Campo, the central space of the city: the prestigious commission indicates that he was recognized as Siena's leading sculptor. The Fonte Gaia (Santa Maria della Scala, Siena; the version in the Piazza del Campo is a copy) took its name ('fountain of joy') from the festivity that greeted the arrival of water when it was first brought to this hilltop site in the mid-14th century.

The Fonte Gaia was dedicated to the Virgin, traditional protectress of the city, and its iconography was intended to harmonize with and expand on the themes of good government found in the 14th-century frescoes in the Palazzo Pubblico opposite. The contract was modified in January 1409 to specify a greater number of figures and an increased payment.

Preview	Picture Data	File Info	Comment
	Fonte Gaia 1408-19 Marble Piazza del Campo, Siena	1200*567 True Color 86 Kb
	Fonte Gaia 1408-19 Marble Piazza del Campo, Siena	1700*1106 True Color 277 Kb
	Fonte Gaia 1408-19 Marble Piazza del Campo, Siena	1700*1130 True Color 236 Kb
	Fonte Gaia 1408-19 Marble Piazza del Campo, Siena	1700*1275 True Color 254 Kb
	Design for the Fonte Gaia (fragment) c. 1415 Pen and ink on vellum, 153 x 228 mm Victoria and Albert Museum, London	1200*794 True Color 176 Kb
	Design for the Fonte Gaia (fragment) 1415-16 Pen and brown ink, brush and brown wash on vellum, glued onto secondary paper, 201 x 214 mm Metropolitan Museum of Art, New York	1200*1111 True Color 253 Kb
	Acca Larentia 1414-19 Marble, height 162 cm Santa Maria della Scala, Siena	937*1800 True Color 107 Kb
	Acca Larentia 1414-19 Marble, height 162 cm Santa Maria della Scala, Siena	664*1800 True Color 89 Kb
	Acca Larentia 1414-19 Marble, height 162 cm Palazzo Pubblico, Siena	728*1500 True Color 180 Kb
	Rea Silvia 1414-19 Marble, height 162 cm Santa Maria della Scala, Siena	1200*1800 True Color 258 Kb
	Rea Silvia 1414-19 Marble, height 162 cm Santa Maria della Scala, Siena	1167*1750 True Color 282 Kb
	Virgin and Child 1414-19 Marble Santa Maria della Scala, Siena	1056*1500 True Color 254 Kb
	Creation of Adam 1414-19 Marble Santa Maria della Scala, Siena	937*1000 True Color 155 Kb
	Expulsion from Paradise 1414-19 Marble Santa Maria della Scala, Siena	1138*1400 True Color 235 Kb
	Wisdom 1414-19 Marble Santa Maria della Scala, Siena	1276*1500 True Color 220 Kb
	Faith 1414-19 Marble Santa Maria della Scala, Siena	808*1000 True Color 170 Kb
	Justice 1414-19 Marble Santa Maria della Scala, Siena	1110*1500 True Color 206 Kb
	Prudence 1414-19 Marble Santa Maria della Scala, Siena	1030*1500 True Color 190 Kb
	Temperance 1414-19 Marble Santa Maria della Scala, Siena	977*1500 True Color 180 Kb