GUICHARD [IV], son of HUMBERT [II] [Seigneur de Beaujeu] & his second wife Auxilia --- (-Cluny 23 Sep 1137). He "Domnus Humbertus et uxor sua…Auxilia et infantes eorum Guicchardus et Humbertus et Guigo et Ugo" confirmed the donation to Notre-Dame de Beaujeu by Herbert de Senecé by charter dated 1094[2140]. Seigneur de Beaujeu. "Vichardus de Beljoco" signed the undated charter, dated to [1095/1120] under which "Durannus Beljoecensis ecclesie tunc decanus cim germanis meis Berardo et Pontio et nepote nostro Letbaldo" confirmed donations to Notre-Dame de Beaujeu[2141]. He retired to Cluny. The necrology of Notre-Dame de Beaujeu records the death "IX Kal Oct" of "Guichardus Bellijoci in Cluniacensi monasterio anno 1137"[2142].
m (after 23 May 1107) LUCIENNE de Rochefort, daughter of GUY [II] "le Rouge" de Rochefort Sire de Rochefort-en-Yvelines & his second wife Adelais de Crécy dame de Gournay-sur-Marne ([1090/95]-6 May, 1138 or after). Her betrothal to Louis de France, later Louis VI King of France, is recorded by Orderic Vitalis, who calls her "Luciana", names her father and specifies that she later married "Guiscardo de Bello Loco"[2143]. "Luciana soror Hugonis de Creciaco" donated her property "apud Agglias et Buxiacum" to Longpont, with the consent of "Ludovicus rex Francorum quia ex eius feodo erat", in the presence of "Hugone de Creciaco…Radulfo comite, Manasse de Turnomio…et Beatrix uxor eius", by charter dated to [1137][2144]. The necrology of Notre-Dame de Beaujeu records the death "II Non Mai" of "Luciana…mater domini Humberti Bellijoci"[2145].
Guichard [IV] & his wife had eight children