Mon arbre généalogique

The town of Guise lies on the river Oise in eastern Picardie, south-east of Cambrai and east of Saint-Quentin. In Roman times, it fell administratively within the pagus Teoracensis [Thiérache][1906]. Charles II "le Chauve" King of the West Franks granted the fiefs of Hucquigny, near Guise, and Hannape to the historian Nithard in 845[1907]. Nithard, childless by his wife Erchanfride, donated his fiefdoms to the abbey of Prüm, Hannape being transferred subsequently to the abbey of Prémontré[1908]. It is thought that the fortress of Guise was constructed in the late 9th/early 10th century, the châtelains being vassals of the Comtes de Vermandois[1909]. The construction of the castle of Guise, which replaced the old fortress, is generally attributed to Godefroi de Guise (see below)[1910]. The Seigneurs de Guise also possessed the castles of Lesquielles and Hirson, and their two chapels[1911].

The origin of the later Seigneurs de Guise is not known. According to the Histoire de Guise, "Gauthier de Saint-Aubert avait épousé vers 986 une sœur du comte de Vermandois…Eleonore", the author speculating on the possibility of a relationship between Gauthier de Saint-Aubert and the family of the Seigneurs de Guise[1912].

GEOFFROY de Guise . The construction of the castle of Guise, which replaced the old fortress, is generally attributed to Godefroi de Guise[1914]. Seigneur de Guise. m as her first husband, ADA de Ramerupt, daughter of HILDUIN [IV] de Montdidier et de Ramerupt Comte de Roucy & his wife Adelaide de Roucy ([1040/60]-after 1021, bur Abbaye de Liessies). TheChronicle of Alberic de Trois-Fontaines names "Ada…de Guisia" as sixth daughter of Ebles Comte de Roucy[1915]. The Genealogiæ Scriptoris Fusniacensis names "quartam…Hilduini comitis filiam Adam" as wife firstly of "Godefridus de Guisia" and secondly of "Galterum de Aat" and thirdly of "Theoderico de Avesnis"[1916]. She married secondly Gauthier Seigneur de Ath, and thirdly Thierry Seigneur d'Avesnes. "Wido Lescheriensis…et Guisiensis" granted rights to the abbey of Saint-André du Câteau, for the souls of "meæ et coniugis meæ Adeluyæ", by undated charter, signed by "filiorum meorum Adam et Burgardi…" and later confirmed by the bishop of Laon by charter dated 1121 at the request of "Guido de Gusia rogatu uxoris suæ Adeluyæ et matris suæ Adæ" and with the consent of "filiis suis Adam et Burchardo"[1917]. She built the convent of Lessies with her third husband, where she retired after his death and was buried[1918]. Geoffroy & his wife had [two] children