Beatrice of Savoy was suo jure Dame of Faucigny through the inheritance from her mother Agnes of Faucigny. Her father was Peter II, Count of Savoy, she was his only legitimate child, but due to Salic law that existed in Savoy, she was excluded from the succession upon his death in 1268. In addition to being Dame, Beatrice held the titles of Dauphine of Viennois and Viscountess of Barn by her two marriages.
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Source: Wikipedia