Amadeus VIII, Duke of Savoy

Felix V
Antipope Felix V, the last historical Antipope.
Papacy began	5 November 1439
Papacy ended	7 April 1449
Opposed to	Eugene IV and Nicholas V
Personal details
Birth name	Amadeus VIII
Born	4 September 1383 Chambéry
Died	7 January 1451(1451-01-07) (aged 67)
Parents	Amadeus VII, Count of Savoy and Bonne of Berry
Coat of arms

Papal styles of Antipope Felix V
Reference style	His Holiness
Spoken style	Your Holiness
Religious style	Holy Father
Posthumous style	None

Amadeus VIII (4 September 1383 – 7 January 1451) was an Savoyard nobleman, the son of Amadeus VII, Count of Savoy and Bonne of Berry. He was surnamed the Peaceful. After the death of his father in 1391, his mother acted as a regent, because of his youth. Born at Chambéry, he was the Count of Savoy from 1391 to 1416 and was elevated by Emperor Sigismund to Duke of Savoy in 1416.

In 1418 his distant cousin Louis of Savoy-Achaea, his brother-in-law, the last male of the elder branch of House of Savoy, died, leaving Amadeus as his heir-general, thus finally uniting the male-lines of the House of Savoy.

Amadeus increased his dominions and encouraged several attempts to negotiate an end to the Hundred Years' War. After the death of his wife, he founded the Order of Saint Maurice with six other knights (1434). They lived alone in the castle of Ripaille, near Geneva, in a quasi-monastic state. Amadeus was elected at Basel as pope Felix V in opposition to Pope Eugene IV, by the Council of Basel-Ferrara-Florence and reigned from November 1439 to April 1449. He resigned as duke in favour of his son in 1440. He stepped down to accept a Cardinal's hat. He is now regarded as an antipope.

Amadeus' image in history is marred by the account of him as a pontiff concerned with money, to avoid disadvantaging his heirs, found in the Commentaries of Pius II. Nor is there evidence that he intrigued to obtain the papal office, sending the bishops of Savoy to Basel for this purpose.

(Note on numbering: When numbering of the Popes began to be used, Antipope Felix II was counted as one of the Popes of that name. The second true Pope Felix is thus known by the number III, and the third true Pope Felix was given the number IV. It also affected the name taken by Amadeus, who would have been the fourth Pope Felix.)