 The initial 18th-century frescoes by Antonio Bicchierai and Giovanni Domenico Piastrini, are nearly vanished except for a few allegorical figures in the apartments of the Cardinals.In 1787, the new Cardinale dei Brevi, Cardinal Romoaldo Braschi-Onesti, had the palaced redecorated by Bernardino Nocchi, which was also nearly lost except for frescoes on the "Myth of Proserpine" in the "Salone Pompeiano" and decoration in the ceiling of the "Studio dei Giudici" depicting charity and the four virtues.The Savoy monarchy had frescoed completed by Domenico Bruschi, Cecrope Barilli and Annibale Brugnoli.