In the mid-1750s, the palace was refurbished by Bartolommeo di Capua. He commissioned from Francesco de Mura, frescoes for the ballroom, recalling the exploits of his similarly named father in battles with King Charles VII of Naples (Charles III of Spain). At the 1744 Battle of Velletri, Bartolomeo the elder sacrificed his life by providing the King with a horse. The work was heavily damaged by bombardment during 1942. Other paintings inside are allegorical scenes (1765) by Giovanni Battista Maffei.