Several Chancellors of the university had previously held positions such as Governor General of Canada, or the Viceregal consort of Canada. Examples include Pauline Vanier, 46th viceregal consort of Canada, Gabrielle Léger, the 48th viceregal consort of Canada, Maurice Sauvé, the 50th viceregal consort of Canada, and Michaëlle Jean, the 27th Governor General of Canada. A number of alumni have also gained prominence serving in government. Four heads of government attended the university, including Edward Morris, 1st Baron Morris, the 2nd Prime Minister of Newfoundland, Paul Martin, the 24th Prime Minister of Canada, Philémon Yang, the eighth Prime Minister of Cameroon, and Abdiweli Sheikh Ahmed, the 17th Prime Minister of Somalia. The 36th Argentine Vice President, Gabriela Michetti had also taken career specialization courses at the university. Premiers include Paul Okalik, 1st Premier of Nunavut, and Dalton McGuinty, 24th Premier of Ontario. Six graduates have been appointed puisne justices, with one moving on to become a Chief Justice of Canada. Puisne justices include Louise Arbour, Michel Bastarache, Louise Charron, Louis LeBel, Richard Wagner and Gérald Fauteux. Fauteux and Wagner would later become a Chief Justice of Canada.