Thibaut I

• Name	Thibaut I
  Gender	Male
  Person ID	I7371	Petersen-de Lanskoy
  Last Modified	21 Jun 2026

  
  

  Family	Ligard de Vermandois
  Family ID	F3300	Group Sheet  |  Family Chart
  Last Modified	30 Jun 2026

  
  

• Notes

  RESEARCH_NOTES: 1. “Royal Ancestry: A Study in Colonial & Medieval Families,” Douglas Richardson (2013): “HERIBERT II, Count of Meaux, Soissons, and Vermandois and lay-abbot of Saint-Crépin and Saint-Médard of Soissons, 900/907-943, born about 880. He married ___ OF FRANCE, daughter of Robert I, King of France, by his wife, Aelis. They had five sons, Eudes [Count of Vienne and Amiens], Heribert [Count of Omois and Troyes], Robert [Count of Troyes and Meaux], Albert (I) [Count of Vermandois], and Hugues [Archbishop of Reims], and two daughters, Adèle and Ligard (or Luitgard, Ledgarde) (wife of Guillaume I, Duke of Normandy, and Thibaut I, Count of Blois and Chartres). HERIBERT II, Count of Vermandois, etc., died 23 Feb. 943, and was buried at Saint-Quentin. Martin & Jacob Histoire de Soissons 1 (1837): 370-371. Étienne-Gallois La Champagne et les derniers Carlovingiens (1853): 139-145. Halphen & Poupardin Chroniques des Comtes d'Anjou et des Seigneurs d'Amboise (1913): 247-250 (Genealogiæ Comitum Andegavensium). Brandenburg Die Nachkommen Karls des Großen (1935) VI 3, VII 5. Schwennicke Europäische Stammtafeln 3(1) (1984): 49 (sub Vermandois). Winter Descs. of Charlemagne (800-1400) (1987): VI.3, VII.1-VII.7. Settipani & von Kerrebrouck La Préhistoire des Capetians (1993). Schwager Graf Heribert II (1994). Tanner Fams., Friends, & Allies (2004): 308 (Vermandois ped). Children of Heribert II de Vermandois, by ___ of France: i. ROBERT, Count of Troyes and Meaux [see next]. ii. ADELE DE VERMANDOIS, married ARNULF (or ARNOUL) I the Great or the Old, Count/Marquis of Flanders, Count of Artois, Count of Boulogne and Temois [see Line B, Gen. 6 below].”