Attached to the court and camp of Clovis II, he acted as chief almoner to the queen, Bathildis.
[1] When Bathilde was regent for her six-year-old son Chlothar III after the death of her husband in 657, she commissioned Genesius to expand Chelles monastery.
[1] On 26 June 667, he subscribed another charter framed by Drauscius, Bishop of Soissons, for a convent of the Blessed Virgin founded by Ebroin, mayor of the palace, and his wife Leutrude.
In the conflict between Ebroin and St. Leger (Leodegarius), Bishop of Autun, Genesius (675-76) took the part of the bishop and was in consequence attacked by an armed band sent by Ebroin to expel him from Lyons; but Genesius collected a force and successfully defended his city.
His body remained in the Saint-Nizier Church till the beginning of the fourteenth century, when it was transferred to Chelles Abbey.