Title: 11th Canadian Ministry
Content:  The Eleventh Canadian Ministry was the first cabinet chaired by Prime Minister Arthur Meighen. It governed Canada from 10 July 1920 to 29 December 1921, including only the last year of the 13th Canadian Parliament. The government was formed by the National Liberal and Conservative Party. Meighen was also Prime Minister in the Thirteenth Canadian Ministry.
Title: 11th Canadian Parliament
Content:  The 11th Canadian Parliament was in session from January 20, 1909, until July 29, 1911. The membership was set by the 1908 federal election on October 26, 1908, and it changed only somewhat due to resignations and by-elections until it was dissolved prior to the 1911 election. It was controlled by a Liberal Party majority under Prime Minister Sir Wilfrid Laurier and the 8th Canadian Ministry. The Official Opposition was the Conservative/Liberal-Conservative, led by Robert Borden. The Speaker was Charles Marcil. See also List of Canadian electoral districts 1907-1914 for a list of the ridings in this parliament.
Title: List of prime ministers of Canada by time in office
Content:  (12) (10) (1) Footnotes
Title: List of prime ministers of Canada by time in office
Content:   This article is a list of the prime ministers of Canada by their time in office. The list starts with Confederation on July 1, 1867, and the first prime minister, Sir John A. Macdonald. It includes all prime ministers since then, up to the current prime minister, nor do they have term limits. Instead, they can stay in office as long as their government has the confidence of a majority in the House of Commons of Canada under the system of responsible government. Under this system, Prime Minister Mackenzie King was Canada's longest-serving prime minister, holding office in three non-consecutive terms for 
Title: 11th Canadian Ministry
Content: Prime Minister ; 10 July 1920 – 29 December 1921: Arthur Meighen ; Minister of Agriculture ; 10 July 1920 – 29 December 1921: Simon Fraser Tolmie ; Minister of Customs and Excise ; 4 June 1921 – 21 September 1921: Rupert Wilson Wigmore ; 21 September 1921 – 29 December 1921: John Babington Macaulay Baxter ; Minister of Customs and Inland Revenue ; 10 July 1920 – 13 July 1920: Martin Burrell ; 13 July 1920 – 4 June 1921: Rupert Wilson Wigmore ; Secretary of State for External Affairs ; 10 July 1920 – 29 December 1921: Arthur Meighen ; Minister of Finance ; 10 July 1920 – 29 
Title: List of prime ministers of Canada
Content:  , there are six living former prime ministers of Canada, the oldest being Jean Chrétien (born 1934; served 1993–2003). The most recent former prime minister to die was John Turner (1929–2020; served in 1984) on 19 September 2020. The living former prime ministers, in order of service, are: The greatest number of living former prime ministers at any one time was seven. This has occurred once, between 4 November 2015 (when Justin Trudeau succeeded Stephen Harper) and 19 September 2020 (when John Turner died), the seven living former prime ministers were Clark, Turner, Mulroney, Campbell, Chrétien, Martin and Harper.
Title: 8th Canadian Ministry
Content:  The Eighth Canadian Ministry was the cabinet chaired by Prime Minister Sir Wilfrid Laurier. It governed Canada from 11 July 1896 to 5 October 1911, including all of the 8th, 9th, 10th, and 11th Canadian Parliaments. The government was formed by the Liberal Party of Canada.
Title: 9th Canadian Ministry
Content:  The Ninth Canadian Ministry was the first cabinet chaired by Prime Minister Sir Robert Borden. It governed Canada from 10 October 1911 to 12 October 1917, including only the 12th Canadian Parliament. The government was formed by the old Conservative Party of Canada. The Conservatives governed in coalition with the Liberal-Conservative Party until 12 October 1916 when the last Liberal-Conservative cabinet minister, Sam Hughes, was dismissed. Borden was also Prime Minister in the Tenth Canadian Ministry, which he formed for the coalition government with the Liberal–Unionists.
Title: List of prime ministers of Canada by date of death
Content: 19th century : 4 (first John A. Macdonald; last John Thompson) ; 20th century : 11 (first Charles Tupper; last Pierre Trudeau) ; 21st century : 1 (John Turner) 
Title: Electoral history of William Lyon Mackenzie King
Content:   This article is the Electoral history of William Lyon Mackenzie King, the tenth Prime Minister of Canada. A Liberal, he was Canada's longest-serving Prime Minister, with three separate terms as Prime Minister (1921–1926, 1926–1930 and 1935–1948), for a total of 21 years and 154 days. He defeated Prime Ministers Arthur Meighen and R.B. Bennett at different times, and was succeeded by Prime Minister Louis St. Laurent in 1948. King was elected to the House of Commons of Canada twelve times (1908, 1909, 1919, 1921, 1922, 1926 (twice), 1930, 1935, 1940, and 1945). He was elected leader of the Liberal Party of Canada in 1919, by the first leadership convention for a federal party in Canada.

Question: who was the 11th prime minister of canada?
Answer: R. B. Bennett.
Arthur Meighen.