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
Deputy Prime Minister of Sweden Minister can only serve as Prime Minister in a temporary function, as the resignation of a Prime Minister automatically includes the entire cabinet, and the Instrument of Government of Sweden requires the Speaker of the Riksdag to dismiss the cabinet in the case of the death of the Prime Minister. Historically, under the 1809 Instrument of Government the Minister for Foreign Affairs (the "second excellency" and to date the only formal "minister" save for the Prime Minister, the other cabinet members' formal title being "Councillor of State for... etc") was to function as acting Prime Minister should the Prime Minister