Son of Amédée de Clermont the Old man. Educated with the convents of Bonnevaux and Cluny, then at the imperial court of Germany. Monk with Clairvaux towards 1125, abbot of Hautecombe around 1139. Bishop of Lausanne of 1145 to 1159, Amédée exerted his ministry in the spirit of the Cistercian reform.

With the death of the count Amédée III of Savoy, he became tutor of Humbert III. Present at many diets of the emperor Frederic I ^er, it is however not sure that he was his chancellor.

In conflict with the nobility, in particular with the count Amédée of Geneva, it had to be exiled temporarily, but found compromises with the duke Conrad de Zähringen.

It seems that the franknesses from Lausanne were recognized for the first time under its episcopate. Its sanctification (festival on on January 28th) was confirmed in 1903 and 1910. He is the author of Marian homilies.