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
Margaret Thatcher mind. Upon leaving the House of Commons, Thatcher became the first former Prime Minister to set up a foundation; the British wing of the Margaret Thatcher Foundation was dissolved in 2005 due to financial difficulties. She wrote two volumes of memoirs, "The Downing Street Years" (1993) and "The Path to Power" (1995). In 1991 she and her husband Denis moved to a house in Chester Square, a residential garden square in central London's Belgravia district. Thatcher was hired by the tobacco company Philip Morris as a "geopolitical consultant" in July 1992, for $250,000 per year and an annual contribution of