[2] He represented Cardiganshire and Berwick-upon-Tweed in the House of Commons and held minor governmental office.

He quite unsuccessfully suggested in a letter that he would withdraw his support if he did not receive a peerage; Lisburne was horrified when his threat reached the ears of the king.

"... his Majesty observed upon it that he could not have supposed that Lord Lisburne would have imagined that he was to be frightened into giving peerages—the moment was not open for explanation—your opinion, the declaration of your intentions, was in writing.

[4] The titles of Baron Fethard (or Baron Fethers), of Feathered in the County of Tipperary, and Viscount Lisburne, were created in the Peerage of Ireland in 1695 for John Vaughan, Member of Parliament for Cardiganshire and also Lord Lieutenant of that county.

[6] The Lisburne family still own a significant remaining acreage of the Trawsgoed Estate[7] David John Francis Malet Vaughan, 9th Earl of Lisburne (born 15 June 1945) is the son of the 8th Earl and his wife Shelagh Macauley and was styled as Viscount Vaughan from 1965.