http://www.npg.org.uk/whatson/event-root/june-2014/portrait-of-the-day-29062014.php
Portrait of the Day: John Wilmot, 2nd Earl of Rochester

A member of the most dissolute and licentious court circles, Rochester with his ready wit alternately fascinated and enraged Charles II, who dismissed him from court at least once a year, but always had him immediately recalled. As a poet his name is chiefly associated with a number of obscene and pornographic works, but he was also a satirist and lyricist of genius. Talk led by Emma Burgess.