Records of Prime Ministers of the United Kingdom combined with his first term (13 July 176530 July 1766) his total time in office was 1 year and 113 days, which exceeds the total periods of several other Prime Ministers. (The Duke of Wellington had also served as Prime Minister between 1828 and 1830.) Consequently, the Prime Minister with the total shortest period in office was George Canning, whose sole term lasted 119 days from 12 April 1827 until his death on 8 August 1827. The Prime Minister with the longest period between the start of their first appointment and the end of their final term was the Duke
Prime Minister of Brazil the Constitution, the Emperor started to exercise his authority in a manner compatible with parliamentary government, only appointing as prime minister someone who could retain parliamentary support, etc. However, the emperor was not a figurehead monarch like other heads of State in a parliamentary system. The prime minister needed to retain the political confidence both of a majority of the Chamber of Deputies and of the Emperor, who actively scrutinized the workings of the Government. Sometimes the Emperor would dissolve the Chamber of Deputies and summon new elections (a power he possessed under the Constitution), or dismiss the prime minister,