Born in 1383
VIII became count of Savoy
at age 8 after the sudden death of his father in 1391
. At the ripe old age of 10, he married Mary
, daughter of Phillip the Bold
, duke of Burgundy
As a teenager, he would expand the territories of Savoy, purchasing nearby land and laying claim to Geneva.
In 1416 the Holy Roman Emperor Sigismund would elevate Savoy to a duchy, making Amadeus VIII a duke.
After the Council of Basel split with Pope Eugene IV, Amadeus would be elected an antipope in 1439. He served as Pope Felix V for 10 years before abdicating and recognizing the legitimacy of Eugene's successor, Pope Nicholas V.
The first duke of Savoy would die in Geneva in 1451.