Amadeus IV of Savoy

Amadeus IV (1197–1253), eldest son of Thomas I, became Count of Savoy in 1233. He crushed a revolt by his brothers Peter and Aymon in the Aosta Valley with the help of his sons-in-law. In 1234 he settled the family at Chillon with a treaty assigning frontier lordships to his younger brothers.

Knighted by Frederick II at Turin in 1238, in 1244 he escorted Pope Innocent IV from Susa to Chambéry, and in 1246 granted passage rights through his lands to Henry III of England. He died on 11 June 1253; his young son Boniface succeeded under Thomas's regency.