He was the son and heir of Count Rudolf, but died heirless himself and was succeeded by his brother Amadeus II.
[1] According to one modern historian, he was “overawed by the power of the count of Savoy”, and did little during his fifteen-year reign to recover the lands and jurisdictions lost to the Savoyards by his father and grandfather.
[1] In 1279 Aymon married Constance, a daughter of Gaston VII of Béarn and viscountess in her own right of Marsan and Bigorre.
The marriage was arranged by Gaston's second wife, “la Grande Dauphine” Beatrice, who as a daughter of Peter II of Savoy and widow of Guigues VII of Viennois, was related to two traditional rivals of the counts of Geneva.
[1] Late in his life, Aymon may have become involved an anti-Angevin alliance under the auspices of the Crown of Aragon.