GUY [I] de Dampierre (-1151). His parentage is indicated by the charter dated to [1110] under which his maternal uncle "Milo de Monte Leterico" donated a serf to Notre-Dame de Longpont for the soul of "fratris sui Guido Troselli", witnessed by "Guido nepos eius de Domna Petra…"[578]. 1103/04. Seigneur de Dampierre, de Saint-Dizier et de Moeslain. Vicomte de Troyes [1130]. m ([1120/25]) as her third husband, HELVIDE de Baudémont, widow firstly of HELIE de Montmirail, and secondly of HUGUES de Chacenay Sire de Montréal, daughter of ANDRE de Baudémont Seneschal de Bourgogne & his wife Agnes --- (-1165). "Domina Montis Regali…Alaisa" ratified donations to Fontenoy after the death of "viri sui Hugonis" by undated charter[579]. "Eluidis Montis regali domina" donated property to Jully-les-Nonnains, with the consent of "Anserici filii sui", by charter dated 1129[580]. "Guido de Dampetra…et uxor eius…Elvidis et filii Anserici et Guillelmus" approved the donation by "Lethericus de Baudimonto" to the Templars at Provins, by charter dated 1133[581]. "Andree de Baldimento et Goi…is filii eius" donated property "apud Juliacum" to the Priory of Jully-les-Nonains for receiving "in sanctimoniales filias predicti Andree, Mathildem…et Halwidem" by charter dated 1142, subscribed by "dominus Wido de Barri"[582]. Nun at Jully-les-Nonnains, although it is assumed that Helvide left the convent soon afterwards in light of her three marriages. The primary source which confirms her first marriage has not yet been identified. "Simon dominus Belfortis" donated property to Chapelle-aux-Planches by charter dated 1152 in which he names "Hugone fratre meo domino de Brecis", in the presence of "domini Wilermi domini de Dampetra […et Heleidis mater eius…] et Milonis de Planceii"[583]. "Hadevilde ctssa de Dampierre, Helye Renaud son avunculus…Beatrix femme d'Helye" witnessed a declaration by Bozon Bishop of Chalon dated 1157 concerning a donation to the priory of Ulmoy by Guérau de Orchara[584]. Guy [I] & his wife had seven children
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