With a group of collaborators and students Benvenuti was commissioned in 1811–12 to decorate the new rooms in Palazzo Pitti, where he painted a series of mythologic scenes for the Salon of Hercules on the Greek demigod. Another prestigious commission, from the restored Grand Duke of Tuscany, Leopold II, was to fresco the dome of the Cappella Medicea at the San Lorenzo, depicting eight grand subjects, taken from the Old and the New Testament, the four Prophets and the four Evangelists. Under his guidance, Carlo Lasinio engraved the Luca Giordano frescoes in Palazzo Medici-Riccardi.