Adalhelm of Autun

Adalhelm's primary historical attestation comes from the foundation charter of Gellone Abbey, dated 15 December 804, where he served as a witness alongside his brothers Theodoen and another Thierry.^[3] The charter, which established the Benedictine monastery in the Gellone valley near present-day Saint-Guilhem-le-Désert, was part of his brother William's preparation for entering monastic life.^[4]

This document represents the only contemporary source that directly mentions Adalhelm, making him one of many lesser-known members of the Carolingian nobility whose historical footprint is limited to their participation in significant family or religious events.

Adalhel was called as a witness in the charters of the foundation of the abbey of Gellone by his brother William, 15 December 804. Two other brothers signed these charters: Theodoen and a Thierry who is not mentioned in any charters.

On the basis of onomastics, two children have been assigned to him:

• Waldrada of Autun, who married Adrian, Count of Orléans, a count palatine and brother of Hildegard, Charlemagne's queen. This connection would have significantly elevated the family's status within the imperial court.

• Bernard I of Poitiers, who served as Count of Poitiers in 815 and 825, continuing the family's tradition of holding important administrative positions in the Carolingian administration.^{[citation needed]}

These attributions, while not definitively proven by contemporary sources, are based on naming patterns and geographic connections that suggest continuity within the Guilhemid family network.