Gough Whitlam served as the 21st Prime Minister of Australia. Whitlam led the Australian Labor Party (ALP) to power at the 1972 election and retained government at the 1974 election, before being dismissed by Governor-General Sir John Kerr at the climax of the 1975 Australian constitutional crisis. Whitlam remains the only Prime Minister to have his commission terminated in that manner.

See http://en.wikipedia.org/wiki/Gough_whitlam for more information.