Denis Mahon

Sir John Denis Mahon, was a British collector and historian of Italian art. Considered to be one of the few art collectors who was also a respected scholar, he is generally credited, alongside Sacheverell Sitwell and Tancred Borenius, with bringing Italian pre-Baroque and Baroque painters to the attention of English-speaking audiences, reversing the critical aversion to their work that had prevailed from the time of John Ruskin.