Records of Prime Ministers of the United Kingdom office of Prime Minister has coincided with the reigns of 11 British monarchs (including a Regency during the incapacity of George III from 1811 to his death in 1820), to whom the Prime Minister has been constitutionally head of government to the sovereign's headship of state. Until 1837 the death of a sovereign led to Parliament being dissolved within six months which led to a general election. Results of such elections were: Stanley Baldwin is the only Prime Minister to have served three sovereigns in successionKing George V, King Edward VIII and King George VI. Through being in office at
Prime Minister of Canada government and is responsible for advising the Crown on how to exercise the Royal Prerogative and its executive powers, which are governed by the constitution and its conventions. However, the function of the prime minister has evolved with increasing power. Today, as per the doctrines of constitutional monarchy, the advice given by the prime minister is ordinarily binding, meaning the prime minister effectively carries out those duties ascribed to the sovereign or governor general, leaving the latter to act in predominantly ceremonial fashions. As such, the prime minister, supported by the Office of the Prime Minister (PMO), controls the appointments