Margaret Thatcher not shared by others in her Cabinet. She resigned as Prime Minister and party leader in November 1990, after Michael Heseltine launched a challenge to her leadership. After retiring from the Commons in 1992, she was given a life peerage as Baroness Thatcher (of Kesteven in the County of Lincolnshire) which entitled her to sit in the House of Lords. In 2013, she died of a stroke in London at the age of 87. Always a controversial figure, she is nonetheless viewed favourably in historical rankings of British prime ministers, and her tenure constituted a realignment towards neoliberal policies in
Leader of the Opposition (United Kingdom) Leader of the Opposition is normally viewed as an alternative prime minister, and is appointed to the Privy Council. They lead an Official Opposition Shadow Cabinet which scrutinises the actions of the Cabinet led by the prime minister, as well as offer alternative policies. To date, Margaret Thatcher is the only female Leader of the Opposition to become Prime Minister. There is also a Leader of the Opposition in the House of Lords (currently The Baroness Smith of Basildon). In the nineteenth century party affiliations were generally less fixed and leaders in the two Houses were often of equal status.