Ennio Quirino Visconti
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 his day in the field of ancient Roman sculpture . 
<triplet> Ennio Quirino Visconti <subj> November 1, 1751 <obj> date of birth <subj> February 7, 1818 <obj> date of death