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Jean II de la Tour du Pin (1280 – 5 March 1319) succeeded his father Humbert I as dauphin of Viennois from 1306 to 1318. His mother was Anne of Burgundy, dauphine du Viennois.
In 1296 he married Beatrice of Hungary,[1] daughter of Charles Martel of Anjou, titular king of Hungary, and his wife Klementia of Habsburg. They had two children: