He drew convincingly as Andrea Mantegna and Nicolas Poussin, Giovanni Battista Piranesi and Peter Paul Rubens, Thomas Gainsborough and Jean-Baptiste-Camille Corot.

FORBES: The Case Of The Art Forger Who Restored Dead Painters' Careers [Book Excerpt]

The dungeons of the Castel Sant'Angelo, a papal fortress just near the Vatican, inspired the 18th Century Italian artist Giovanni Battista Piranesi to create his famous series of imaginary etchings of Roman prisons - I Carceri.

BBC: Magazine