Spouse of the Prime Minister of Canada turn herself into a First Lady. Canada has had two prime ministers who were bachelors, William Lyon Mackenzie King and R.B. Bennett. Mackenzie Bowell, a widower whose wife, Harriet, died in 1884, was also not married during his term in office. Pierre Trudeau began his term as a bachelor, became the first Canadian prime minister to get married while in office and ended it as Canada's first divorced prime minister. Three other Canadian prime ministers—John A. Macdonald, Alexander Mackenzie, and John Diefenbaker—were widowers, who each married their second wives during their terms as prime minister. Macdonald's first wife was Isabella
Prime minister from that of the president. When it arises, such a state of affairs is usually referred to as (political) cohabitation. In parliamentary systems a prime minister may enter into office by several means. The position, power and status of prime ministers differ depending on the age of the constitution. Australia's constitution makes no mention of a Prime Minister of Australia and the office only exists by convention, based on the British model. Bangladesh's constitution clearly outlines the functions and powers of the Prime Minister, and also details the process of his/her appointment and dismissal. The People's Republic of China constitution