He authored Vita Sancti Eligii which outlines the life and deeds of Eligius, his close friend and companion in the royal court and the Church.

[7] According to Wilhelm Levison in his Vita Audoini episcopi Rotomagensis, Audoin spent a year in evangelical exile as a missionary in Spain just prior to becoming bishop.

After Ebroin's death in 681, he went to Cologne and succeeded in restoring peace between Neustria and Austrasia, but died shortly thereafter at the royal villa at Clichy on 24 August 684.

The former abbot of Fontenelle, Ansbert, succeeded Audoin as Bishop and had his predecessor reburied behind the high altar, the equivalent of a canonization.

This biography, which is one of the most authentic historical monuments of the seventh century, contains a store of valuable information regarding the moral and religious education of that time, and also testifies to the life of Aurea of Paris.

[11] The author of the Liber Historiae Francorum, thoroughly hostile to the memory of Ebroin, invariably referred to Audoin as "blessed" or "sainted", and in describing his death said he "migravit ad Dominum", a phrase he otherwise reserved in the original part of his history for the death of the "glorious lord of good memory, Childebert III, the just king".