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
Margaret Thatcher past 70 years. Despite a relatively poor average poll rating as Prime Minister, Thatcher has since ranked highly in retrospective opinion polling and, according to YouGov, she is "see[n] in overall positive terms" by the British public. She was voted the fourth-greatest British prime minister of the 20th century in a poll of 139 academics organised by MORI. According to theatre critic Michael Billington, Thatcher left an "emphatic mark" on the arts while Prime Minister. One of the earliest satires of Thatcher as Prime Minister involved satirist John Wells (as writer and performer), actress Janet Brown (voicing Thatcher) and future