In Trattato de Architectura, an architect from this city posited ideal cities contained within star forts. The 56-panel pavement of this city’s cathedral shows Euripides, Seneca, Epictetus, and Aristotle each holding scrolls with quotes surrounding the wheel of fortune. Simone de Giorgio Martini is from this city, (15[1])where Jacopo della Quercia’s Fonte Gaia was built for a nine-segment, shell-shaped square in this city, the (*) Piazza del Campo. This city’s cathedral held an altarpiece whose reverse contains scenes of the Life of Christ and the Life of the Virgin. A cord connects two figures to the scales of justice in a fresco from this city. This city’s Palazzo Pubblico contained both Simone Martini’s Maesta and The Allegory of Good and Bad Government. For 10 points, name this rival city of Florence home to Duccio. ■END■