Saul Bellow never followed his Québec into the contemporary world. Before Alice Munro won in 2013, he was the only Nobel Prize recipient in literature to have been born in Canada. Yet besides a library in Lachine that bears his name, his historical presence is invisible. By contrast, another Jewish scion of Montréal, Leonard Cohen, is enjoying a yearlong retrospective at the Musée d’Art Contemporain, the entirety of whose galleries are devoted to works depicting or inspired by or tangentially related to that beautiful loser.