Amadeus V (between 1249 and 1253, Le Bourget-du-Lac – 16 October1323, Avignon), surnamed the Great for his wisdom and success as a ruler, was the Count of Savoy from 1285 to 1323. He established Chambéry as his seat. He was the son of Thomas II of Savoy and Beatrice di Fiechi.
Amadeus IV 'the Great' (reigned 1285-1323) succeeded his childless paternal uncle Philip I, Count of Savoy as Count of Savoy. Amadeus was a younger brother of Thomas III of Piedmont who had died in 1282. Thomas had been succeeded by his eldest son Philip I of Piedmont who had a stronger claim to the County than Amadeus. However Philip was about seven years old and at the time unable to press a claim.
Amadeus managed to secure the support of his nephew by offering Philip control of Turin and Pinerolo. Amadeus also secured the loyalty of his younger brother Louis by offering him Vaud as an hereditary barony.
Through his marriage to Sybilla, Countess of Bugey and Bresse, he was able to incorporate these Burgundian districts into his states. Later expansion saw his dominions further increased.
In 1295, Amadeus acquired the fortress Château de Chambéry from its previous owner Hugh of La Rochette. He chose Chambéry as his main residence and in the following decorated it with paintings.
Among his successes was the Treaty of Annemasse which the Count of Geneva and the Dauphin of Viennois accepted subservient roles to him as his vassals. The treaty was the result of military victories over the both of them. 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.
The eventual recovery of Lyon by the Kings of France alerted Amadeus to their expansionistic tendencies towards the regions by the Alps. He sought a powerful ally against potential hostility in Henry VII, Holy Roman Emperor. Henry was married to Margaret of Brabant, sister-in-law of Amadeus. The relation through marriage probably helped the alliance. Henry awarded Amadeus with the title of imperial vicar for the Kingdom of Italy and at least titular claim over the Asti region.
Eleonor of Savoy, married William of Chalon, count of Auxerre and Tonnerre, Dreux IV of Mello and John I, count Forez - their children included Marguerite of Mello, who married John II of Chalon-Arlay
His listing in "Medieval lands" by Charles Cawley. The project "involves extracting and analysing detailed information from primary sources, including contemporary chronicles, cartularies, necrologies and testaments."
