The Trial of His R.H. the D. of C. [Duke of Cumberland] July 5th, 1770 for Criminal Conversation with Lady Harriet G----------r [Grosvenor] [or Rather Henrietta, Lady Grosvenor]. To which is Prefixed, an Introductory Discourse Upon the Ancient and Modern Punishments of Adultery ... Including All the Letters which Have Passed Between His R.H. and Her Ladyship, Etc