Duke Amadeus VIII of Savoy, born in 1435, was a significant figure in the history of the House of Savoy. He became the Duke of Savoy in 1439 and is known for his efforts to strengthen the duchy during a time of political instability in Italy. His reign saw the expansion of territory and influence, particularly through strategic marriages and alliances. In 1465, Amadeus VIII was elected as the first Antipope Felix V during the Western Schism, a period of division in the Catholic Church. He later renounced this title in 1449, seeking to restore unity within the Church. Amadeus VIII passed away in 1451, leaving a lasting legacy in both the Savoy region and the broader context of European politics.