Military victories over the Amadeus II of Geneva and Humbert I Dauphin of Viennois, leading to the occupation of the city of Geneva in June 1287, led to the Treaty of Annemasse signed on 18 November 1287, whereby they submitted themselves as his vassals.. During the 1294–1303 Gascon War, he acted as an agent of King EdwardI of England in the negotiations that led to the 1299 Treaty of Montreuil and the 1303 Treaty of Paris; separately, he arranged for the marriage of EdwardI with Margaret of France. In 1301, Amadeus also settled his dispute over control of Valais with the Roman Catholic Diocese of Sion. His reign, however, also saw friction between the County of Savoy and the Duchy of Austria. He pursued an alliance with the Kingdom of France and received Maulévrier in Normandy as a result of initial good relations.
Military victories over the Amadeus II of Geneva and Humbert I Dauphin of Viennois leading to the occupation of the city of Geneva in June 1287 led to the Treaty of Annemasse signed on 18 November 1287 whereby they submitted themselves as his vassals During the 1294–1303 Gascon War he acted as an agent of King EdwardI of England in the negotiations that led to the 1299 Treaty of Montreuil and the 1303 Treaty of Paris; separately he arranged for the marriage of EdwardI with Margaret of France In 1301 Amadeus also settled his dispute over control of Valais with the Roman Catholic Diocese of Sion His reign however also saw friction between the County of Savoy and the Duchy of Austria He pursued an alliance with the Kingdom of France and received Maulévrier in Normandy as a result of initial good relations