Third Thatcher ministry to make way for a leader more likely to win the next general election. Her successor was the Chancellor of the Exchequer John Major, who was elected on 27 November 1990, and who at 47 became the youngest Conservative Prime Minister of the 20th century. <section begin="June 1987 to July 1989" /> <section begin="July 1989 to November 1990" /> Members of the Cabinet are in bold face. Third Thatcher ministry Margaret Thatcher was Prime Minister of the United Kingdom from 4 May 1979 to 28 November 1990, during which time she led a Conservative government. She was the first woman
Denis Thatcher a Commonwealth Heads of Government Meeting, asking "So, what do you think the fuzzy wuzzies are up to?" In December 1990, following the resignation of his wife as Prime Minister, it was announced that Denis Thatcher would be created a baronet (the first such creation since 1964). The award was gazetted in February 1991, giving his title as Sir Denis Thatcher, 1st Baronet, of Scotney in the County of Kent. Thus Margaret was entitled to style herself Lady Thatcher while retaining her seat in the House of Commons; however she made it known that she preferred to be addressed as