Quercia, Jacopo della (yäˈkōpō dĕlˈlä kwĕrˈchä) [key], c.1374–1438, Italian sculptor. His work shows the transition from medieval to Renaissance art. He is especially noted for his imposing allegorical figures for the Gaia Fountain in Siena. About 1425 he began to decorate the main portal of San Petronio, Bologna, with scenes from Genesis and the life of Jesus. His grandeur of conception and vigorous modeling formed one of the sources of inspiration for Michelangelo.
See study by C. Seymour, Jr. (1973).