Robert I, Vicomte d'Auvergne, was the son of Eustorge and his wife Arsende.
He married first to Aldegardis, and secondly to Hildegardis[1], daughter of Hubert & Ermengarde.
Sources
↑ Brioude 336, p. 341.
Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families. Hosted online by the Foundation for Medieval Genealogy (FMG), accessed 2021. [1]
Geni. Geni has his wife as Eldearde de Mercouer, born c875.