William IV of Auvergne

William IV of Auvergne (died 1016) was the son of the viscount of Auvergne, and Engelberga (as shown in document no. 363 of the Cartulaire de Sauxillanges and document no. 1525 of the Recueil des chartes de l'abbaye de Cluny, tomé 2 ). Robert II was the son of the count of Clermont and viscount of Auvergne, , and Aldegardis, as confirmed by document no. 336 of the Cartulaire de Brioude, in which his brother Stephen makes a donation for the souls of their parents.

Biography William, after the death of his uncle, Stephen (?-ca. 970), bishop of Clermont,

Little is known about William. The name of his wife, Umberga, whose ancestors are not known, is known, as Baluze asserts in his Histoire généalogique de la maison d'Auvergne. and, according to document no. 267 of the Cartulaire de Sauxillanges, around the year 1000, made a donation for the salvation of her own soul, that of her husband, William, and all their children, both living and dead.

Marriage and descendants William had married Ermengarde who, according to some documents, was the daughter of Stephen of Brioude and his second wife, Adelaide of Anjou; indeed, according to the Flandria Generosa, Ermengarda, countess of Auvergne, was the half-sister of the queen of France, Constance of Arles (Gostantia regina Francorum et Ermengardis comitissa Arvernensis sorores fuerunt). But not Baluze who, in his Histoire généalogique de la maison d'Auvergne, maintains that Ermengarda is indeed the sister of Constance of Arles, but is the wife of the count of Auvergne, Robert I.William and Umberga or Ermengarda had four children: Robert I (?- before 1032), mentioned in a donation by Pons, count of Gévaudan and Forez, count of Auvergne. Stephen William,

Ancestry