Guillaume I, count of Nevers

Count of Nevers and of Auxerre

Count of Tonnerre

Events

Date of Birth: unknown.

Place of Birth: unknown.

Date of Death: 20 June 1098.

Place of Death: unknown.

This date is given by Cawley.

Relationships

Father: Renaud I, count of Nevers.

This relationship is given by père Anselme (3:196) and by Bouchard (1987, p. 345; 2001, p. 54).

Mother: Advisa de France.

This relationship is given by père Anselme (3:196), who calls her Adelle or Adelaide, and by Bouchard (2001, p. 54).

Spouse: Ermengarde, countess of Tonnerre.

This relationship is given by père Anselme (3:197) and by Bouchard (1987, p. 345; 2001, p. 54).

Spouse: Mathilde.

This relationship is given by Cawley.

Children (by Ermengarde):

(Complete source citations for facts about the children on this page are currently outside of the scope of this project. Most information below comes from Cawley.)

Renaud (II) de Nevers (died 5 August 1089) married (1) Ide-Raymonde de Lyon; married (2) Agnès de Baugency.

Guillaume (II) de Nevers (died after 1099), count of Tonnerre.

Robert de Nevers (died 12 February 1095), bishop of Auxerre.

Ermengarde de Nevers married Hubert, viscount of Maine, on 6 December 1067.

Helvise de Nevers married Guillaume “Crespin”, count of Evreux.

References

Anselme de Sainte-Marie. Histoire Généalogique et Chronologique de la Maison Royale de France, des Pairs, Grands Officiers de la Couronne, de la Maison du Roy et des Anciens Barons du Royaume. 9 Volumes (Paris: 1726-1733).

Bouchard, Constance Brittain. Sword, Miter, and Cloister: Nobility and the Church in Burgundy, 980-1198 (Cornell University Press, 1987).

Bouchard, Constance Brittain. “Those of My Blood”: Constructing Noble Families in Medieval Francia (University of Pennsylvania Press, 2001).

Cawley, Charles. “GUILLAUME (I) de Nevers ” in Medieval Lands: A prosopography of medieval European noble and royal families.