Margaret Thatcher Foundation in 2006, where she established the Margaret Thatcher Center for Freedom. Margaret Thatcher Margaret Hilda Thatcher, Baroness Thatcher, (; 13 October 19258 April 2013) was a British stateswoman who served as Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party from 1975 to 1990. She was the longest-serving British prime minister of the 20th century and the first woman to hold that office. A Soviet journalist dubbed her "The 'Iron Lady, a nickname that became associated with her uncompromising politics and leadership style. As Prime Minister, she implemented policies known as Thatcherism.
Father of the House until soon before his death during April 1908. On 13 June 2017 Harriet Harman was dubbed "Mother of the House" by Prime Minister Theresa May, in recognition of her status as longest continuously serving woman MP. The title 'Father of the House' is not used in the House of Lords. The longest-serving member is recorded on the House website, though no duties or special distinctions are associated with the position , the longest serving member is The Lord Denham (Conservative), who first took his seat on 13 December 1949 (having suceeded his father in the peerage the previous year). The