Maurice Le Noblet Duplessis, popularly known as "Le Chef", was a Canadian lawyer and politician who served as the 16th premier of Quebec. A conservative, nationalist, populist, anti-communist, anti-unionist, and fervent Catholic, Duplessis and his party, the Union Nationale, dominated provincial politics from the 1920s to the 1950s. With a total of 18 years and 82 days in office, he remains the longest-serving premier in Quebec history.