Mon arbre généalogique

The county of Ostrevant originally formed part of the pagus Atrebatensis. It was bound to the north by the river Scarpe, and to the east and south by the rivers Escaut and Sensée[965]. It lay east of Douai and west of Valenciennes, within the territory of the west Frankish kingdom. It is not known who governed the county after the death of Raoul [II] in 944 until the late 11th century when it was held by the seigneurs de Ribemont, who were also châtelains de Valenciennes (see HAINAUT).

HUCBALD, son of --- (-after 890). Comte [d'Ostrevant]. m as her first husband, HEILWIG [of Friulia], daughter of EBERHARD Duke of the March of Friulia [Unruochingi] & his wife Gisela [Carolingian]. The primary source which confirms her name has not yet been identified. This marriage is confirmed by Flodoard´s Historia Remensis Ecclesiæ which names "Hucboldus...sororis...Rodulfi maritus"[1163]. The Chronicle of Alberic de Trois-Fontaines names "Hucbaldus de Hainacq" as"huius [=abbas Rodulfus] sororius"[1164]. The information appears to be corroborated by a later passage in the same source which records that "comes Rodulfus" (referring to Heilwig's grandson) was "nepos…ex sorore" of Louis IV King of France[1165]. It appears chronologically unlikely for any of King Louis's sisters, whose dates of birth can be estimated to [908/17], to have been the mother of Raoul [II] who was killed in battle in 944, presumably when he was already adult. It appears more likely that the family relationship was one generation further back, and that a member of the Unruochingi family, descended from the sister of Charles II "le Chauve" King of the West Franks and who originated in the same area in northern France, would provide a good match. She maybe married secondly (after 890) Roger[I] Comte de Laon. Her second marriage is shown in Europäische Stammtafeln[1166] but the primary source on which this is based has not been identified. Another table in Europäische Stammtafeln only names the wife of Comte Roger as "Helvide" but does not give her origin[1167]. Comte Hucbald & his wife had one child

Il aurait également eu une sœur, mère de Herivé († 922), archevêque de Reims de 900 à 922, et d'Eudes.

Sa veuve se remaria avec Roger Ier (vers 867-† 926), comte de Laon.

http://fr.wikipedia.org/wiki/Hucbald_de_Gouy