The genuine copies of letters which passed between His Royal Highness the Duke of Cumberland and Lady Grosvenor [electronic resource] : Her Ladyship's letters to the Hon. Miss Vernon, Maid of Honour to the Queen, the anonymous letters signed Jack Spratt, which were sent to Lord grosvenor; Another signed T. Trusty, sent to Lady Grosvenor, And one from Miss vernon to her Ladyship. Part of which were never before published. To which is annexed, a clear and Circumstantial account of the trial in the Court of King's Bench, on the 5th of July 1770; wherein the Rt. Hon. Lord Grosvenor was plaintiff, and His Royal Highness the Duke of Cumberland, defendant, for Criminal Conversation with the Plaintiff's Wife.