<page_title> List of Prime Ministers of Luxembourg </page_title> <section_title> Prime ministers of Grand Duchy of Luxembourg since 1918 </section_title> <table> <cell> Gaston Egmond Thorn (1928–2007) <col_header> Prime Minister (Birth-Death) </col_header> <col_header> Start </col_header> <row_header>  </row_header> </cell> <cell> 15 June 1974 21 July 1976 16 September 1977 <col_header> Term of Office </col_header> <row_header>  </row_header> </cell> <cell> 21 July 1976 16 September 1977 16 July 1979 <col_header> Term of Office </col_header> <row_header>  </row_header> </cell> <cell> Xavier Bettel (born 1973) <col_header> Prime Minister (Birth-Death) </col_header> <col_header> Start </col_header> <row_header>  </row_header> </cell> <cell> 4 December 2013 <col_header> Term of Office </col_header> <row_header>  </row_header> </cell> </table>
Since the Second World War, every Prime Minister of Luxembourg has been a member of the CSV, with only two exceptions: Gaston Thorn (1974–1979), and Xavier Bettel (2013).