Jonathan Bryan Guinness, 3rd Baron Moyne (born March 16, 1930) succeeded as 3rd Baron Moyne in 1992. He is the son of Bryan Guinness, 2nd Baron Moyne and Diana Mitford. March 16 is the 75th day of the year in the Gregorian Calendar (76th in Leap years). ... 1930 is a common year starting on Wednesday. ... Baron Moyne is a peerage title in the Peerage of the United Kingdom. ... 1992 (MCMXCII) was a leap year starting on Wednesday. ... Bryan Walter Guinness, 2nd Baron Moyne (October 27, 1905 - July 6, 1992), was an heir to the Guinness family brewing fortune, lawyer, poet and novelist. ... Diana Mitford, Lady Mosley (June 17, 1910 – August 11, 2003) was one of Britains noted Mitford sisters. ...

He was a long-standing member of the Conservative Monday Club, serving on several of its committees, was elected Chairman in the mid-1970s and thereafter was Vice-Chairman until 1992. The Monday Club is a British Conservative pressure group formed at the time of Harold Macmillans Winds of Change speech in opposition not only to that but to the drift of the Conservative Party towards liberalism. ...

He twice stood as Prospective Parlamenatary Candidate for the Conservative Party. His nickname was "Old Razor Blades", which he gained during the 1973 Lincoln by-election, where, as Conservative candidate, he proposed that convicted murderers should have razor blades left in their cells to enable them to "do the decent thing."