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
Diana Gould – Margaret Thatcher exchange toward it. The exchange between Thatcher and Gould became iconic, remembered because of Gould's persistence in asking why Thatcher had given the order, which seemed to rattle the prime minister. It was described as "the day Margaret Thatcher met her match". Thatcher was reportedly angry that the BBC had allowed the question to be asked. Her husband, Denis Thatcher, told the producer that the BBC was run by "a nest of long-haired Trots and wooftahs". Gould wrote a book about her experience, "On the Spot: The Sinking of the Belgrano" (1984). Diana Sydney Gould ("née" Prigg, 18 April 1926 –