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Thérèse Tanguay-Dion, MSM, popularly known as Maman Dion, was a Canadian television personality and the mother of singer Celine Dion.She was born on the Gaspé Peninsula, in Saint-Bernard-des-Lacs, Quebec, as was her husband, Adhémar-Charles Dion. Her parents were Antoinette and Laureat Achille Tanguay.