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 also the current oldest serving MP aged . In New Zealand, the term Father or Mother of the House, as an unofficial title, designates the longest-continuously serving MP of the House of Representatives. The Father of the House has no official role in Parliament. Former Cabinet Minister Nick Smith succeeded former Prime Minister Bill English as Father of the House when the latter resigned in March 2018, having served continuously since the 1990 general election. In New Zealand's first election of , the electorate became the first to declare the election of a successful candidate, electing Hugh Carleton unopposed. In