[Born at Rome, 1707. Died there, 1778. Aged 71.] An excellent and laborious artist. Has produced a great work in sixteen volumes upon the antiquities and curiosities of Rome. Has never been surpassed for his skill in representing architectural ruins and restorations. He also displays singular powers of invention, and his fancy subjects show consummate execution. He acquired great and widely extended fame during his life. [By Antonio d’Este.]