Felix V, antipope of Rome (died 1451)

Amadeus VIII, Duke of Savoy

Savoyard nobleman and antipope (1383–1451)

Amadeus VIII, nicknamed the Peaceful, was Count of Savoy from 1391 to 1416 and Duke of Savoy from 1416 to 1440. He was the first to hold the ducal title, granted by Emperor Sigismund. Known for his diplomatic temperament and administrative reforms, he strengthened the state's…