Prime Minister of the United Kingdom retirement from the Commons, which elevates the individual to the House of Lords. Formerly, the peerage bestowed was usually an earldom, with Churchill offered a dukedom. From the 1960s onward, life peerages were preferred, although in 1984 Harold Macmillan was created Earl of Stockton. Sir Alec Douglas-Home, Harold Wilson, James Callaghan and Margaret Thatcher accepted life peerages, although Douglas-Home had previously disclaimed his hereditary title as Earl of Home. Edward Heath did not accept a peerage of any kind and nor have any of the Prime Ministers to retire since 1990; although Heath and Major were later appointed as Knights
Mary Wilson, Baroness Wilson of Rievaulx attended the funeral of Margaret Thatcher. Wilson died on 6 June 2018, of a stroke, in London aged 102. The longest-lived spouse of a British prime minister, she was the first and only to live beyond the age of 100 years. Mary Wilson, Baroness Wilson of Rievaulx Gladys Mary Wilson, Baroness Wilson of Rievaulx (; 12 January 19166 June 2018) was an English poet and the wife of Harold Wilson, who twice served as Prime Minister of the United Kingdom. She is the only spouse of any Prime Minister to have died a centenarian. She was born in Diss, Norfolk,