Amadeus III succeeded his father as Count and died on his way home from the Crusades. His titles were recognized by the Emperor in 1111. He m. in 1123 Matilda d'Albon (who d. after January, 1145), daughter of Count Guidues VI d'Albon, Dauphin de Viennois.

References: [ES],[PlantagenetA],[Talbot1],[Paget1],[AR7],[MRL]