BAUDOUIN de Guines, son of EUSTACHE Comte de Guines & his wife Susanne de Grimmingen (-before 1097). The Historia Comitum Ghisnensium names "Balduinum, Willelmum et Reinelmum, Adelam et Beatricem" as the children of "Eustacius [comes Ghisnensi]" & his wife[848]. He succeeded his father as Comte de Guines. An undated charter records donations to the chapel of Notre-Dame "in castro Gisnensi", including the donation made by "Balduinus comes Gisnensis" of "duas mansiones in castro supra dicto et terram de Hautingahem…" with the consent of "filiis suis Manasse, Fulcone, Hugone, Widone et Mathilde", witnessed by "Ida Boloniensi comitissa, Ernulfo de Arda, Elemberto vicecomite, Mauritio et Alulpho filio eius…"[849]. "Balduini comitis et uxoris sive filiorum" donated property to "monachorum cœnobii S. Salvatoris Carosensis" by charter dated 1084[850]. The cartulary of the abbey of Charroux records the founding of the abbey of Ardres by "Balduinius comes Gisnensis" in 1097, confirmed following his death by "filius eius Manasses", the charter being subscribed by "Hugo archidiaconus frater Manassis comitis…Fulco frater comitis"[851]. The Historia Comitum Ghisnensium records the death of "Balduinus" and his burial "cum duobus filiis suis Widone et Hugone, Andrie"[852].
m ADELA [Christina] [of Holland, daughter of FLORIS I Count [of Holland] & his wife Gertrud of Saxony] (-1085). The Historia Comitum Ghisnensium names "viri Lotharie et milicie ducis florigeri Florentini filiam Adelam…dicta Cristiana" as wife of "Balduinum [comem Ghisnensi]"[853]. The passage contains no direct reference to the Counts of Holland, although the first name "Florentinus" is indicative and has not been found in other contemporary noble families. If Adela belonged to the family of the Counts of Holland, the text is chronologically consistent with Count Floris I being her father. This hypothesis assumes that the text correctly names Adela's father in the first place. This is far from certain in light of the numerous inaccuracies and inconsistencies in the early parts of the Historia. In addition, none of the names typically associated with the family of the Counts of Holland are found among the couple's descendants. Jean Bishop of Tournai confirmed the foundation of the monastery of Andres by "Balduinum piæ memoriæ comitem Gisnensem uxoremque eius Athelam" by charter dated 1122 which names "filiisque eius Manasse, Fulcone, Hugone, Widone"[854].
Comte Baudouin & his wife had seven children