Margaret Joan (née Sinclair) Trudeau (Kemper), author, actor, photographer, mental health advocate (born 10 September 1948 in North Vancouver, BC). Margaret Trudeau’s marriage to Prime Minister Pierre Trudeau in 1971 made her a public figure overnight. The dissolution of their union occurred under withering public scrutiny at a time when traditional roles, for homemakers and political wives alike, were being challenged. As the wife of one prime minister and the mother of another — Justin Trudeau — Margaret Trudeau carved out a public role for herself after revealing her diagnosis with bipolar disorder. In two books and in well-received public speeches, she has been an outspoken advocate for people with mental health issues.