Robert Pincus-Witten
Robert Pincus-Witten ( April 5 , 1935 – January 28 , 2018 ) was an American art critic , curator and art historian . 
<triplet> Robert Pincus-Witten <subj> April 5, 1935 <obj> date of birth <subj> January 28, 2018 <obj> date of death