| Born in 1383 in Chambéry, Savoy. Amadeus 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.
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