"Ennio Quirino Visconti (November 1, 1751 – February 7, 1818) was an Italian antiquarian and art historian, papal Prefect of Antiquities, and the leading expert of ...
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his day in the field of ancient Roman sculpture. His son, Pietro Ercole Visconti, edited Versi di Ennio Quirino Visconti, raccolti per cura di Pietro Visconti while Louis Visconti became a noted architect in France. His brother, Filippo Aurelio Visconti (died 1830) was also a classical scholar, who published the Museo Chiaramonti, a successor to the Museo Pio-Clementino." - (en.wikipedia.org 05.06.2021)