Guion de Beaumont, vicomte de Chaumont

-https://en.wikipedia.org/wiki/Walo_II_of_Chaumont-en-Vexin

-http://fmg.ac/Projects/MedLands/nfravalver.htm#GalonBeaumontChaumon...
1. GALON [II] de Beaumont (-after 1 Jul 1097). "…Gualo filius Odonis de Calvomonte…" witnessed the charter dated 1085 under which Philippe I King of France donated property to Bec[68]. Vicomte de Chaumont. Connétable 1085. William of Tyre names "Galo de Calvo Monte" among those who left on the First Crusade in 1096 with Robert Count of Flanders[69]. Albert of Aix names "…Walo de Calmunt…" among those who took part in the siege of Nikaia, dated to mid-1097 from the context[70]. Albert of Aix records that "…Walo de Calmunt…" fought against the Turks at Dorylæum (1 Jul 1097)[71].

m HUMBERGE du Puiset, daughter of HUGUES [I] "Blavons" de Breteuil Châtelain du Puiset Vicomte de Chartres & his wife Alix de Montlhéry. The donation of property to "sancti Petro" by "Hugo vicecomes" is recorded in a charter dated 1096, subscribed by "Adelidis uxor vicecomitis, filii eorum, Ebrardus, Hugo, Guiddo et filia Unberga"[72]. The primary source which confirms her marriage has not been identified. 1094.

  Galon [II] & his wife had three children: 

*a) DREUX de Chaumont (-after 1099). "Drogo filius Walonis de Calvomonte" confirmed a donation of property to Saint-Martin-de-Pontoise by "Willelmus qui agnominabatur Aculeius", with the consent of his unnamed wife and sons, by charter dated to after 1099[73]. - SEIGNEURS de TRIE.

• b) HUGUES "Panis avena" . The Chroniques de St. Germer record that "Hugo de Calvomonte dictus Panis Avenæ, Galonis filius, Drogonis frater…patruus Ingelramni de Calvomonte seu de Tria" requested his brother to donate property to the abbey[74]. Provost at Saint-Germer [1115].
• c) HUMBERGE . before 1089.