Guy I de Montlhéry, Seigneur de Montlhéry and Chevreuse

1009 - 1095  (86 years)

• Name	Guy I de Montlhéry
  Birth	About 1009	France   [1]
  General Information	He founded the Abbey of Longpoint.  [1]
  Religion	say 1090 (81 years)  [1]
  In later life he became a monk.
  Death	1095	Longpont Abbey, Longpont, Hauts-de-France, France   [1]
  Burial	1095	Longpont Abbey, Longpont, Hauts-de-France, France   [1]
  Patriarch & Matriarch	Milton I de Monteleherico, Seigneur de la Ferte-sur-Qurcy   (Father)  daughter  (Mother)
  Person ID, Branch	I3730	Roy Line, Boudreau Line
  Last Modified	24 Jun 2025

  
  

  Father	Milton I de Monteleherico, Seigneur de la Ferte-sur-Qurcy
  Mother	daughter
  Family ID	F3078	Group Sheet  |  Family Chart

  
  

  Spouse / Partner	Saint Hodierne de Gometz, Dame de la Ferte
  Marriage	Yes, date unknown  [1]
  Information	They were married during the reign of Henry I (1031-1060).
  Children	2 sons and 2 daughters
  +   1. Guy II, Sire de Montlhéry,   b. 1017, Monthlhéry, Île-de-France, France d. 1108 (Age 91 years)  [Father: Birth]  [Mother: Birth] ▻ Elise de Corbeil;   Adelaide de Crécy  m. yes, date unknow +   2. Milon I, Seigneur de Montlhery, Bray, Chevreuse, and la Ferte,   b. Abt 1035   d. 1118 (Age 83 years)  [Father: Birth]  [Mother: Birth] ▻ Lithuaise, Dame de Bray  m. Abt 1070 +   3. Elizabeth de Monthlhéry,   b. About 1040, Montlhéry, Essonne, Île-de-France, France d. 1113 (Age 73 years)  [Father: Birth]  [Mother: Birth] ▻ Gauthier de St. Valery  m. Yes, date unknown;   Joscelin de Courtenay, Seigneur de Courtenay and Château-Renard  m. After 1065 +   4. Melisende de Monthlhéry  [Father: Birth]  [Mother: Birth] ▻ Hugh I, Comte de Rethel  m. Yes, date unknow
  Family ID	F2625	Group Sheet  |  Family Chart
  Last Modified	4 Feb 2022

  
  

• Pedigree

  ← Click to display 1Guy I de Montlhéry, Seigneur de Montlhéry and Chevreuse(1009 – 1095) 2Milton I de Monteleherico, Seigneur de la Ferte-sur-Qurcy 4 8 16 17 9 18 19 5 10 20 21 11 22 23 3daughter 6Thibaud, Seigneur of Monlhéry and Chevreuse(Abt 970 – 1031) 12Ansaud II 24Ansaud I, Vicomte d'Auxerre 25Raingarde de Dijon( – 954) 13Reitrude 26 27 7 14 28 29 15 30 31

  
  

• Event Map		Birth - About 1009 - France Death - 1095 - Longpont Abbey, Longpont, Hauts-de-France, France Burial - 1095 - Longpont Abbey, Longpont, Hauts-de-France, France  = Link to Google Earth
  Pin Legend	: Address       : Location       : City/Town       : County/Shire       : State/Province       : Country       : Not Set

  
  

• Sources 🟢 Primary Evidence 🟡 Secondary Evidence 🟠 Tertiary Evidence 🔴 Unreliable Evidence

  [S60] Stuart, Roderick W., Royalty for Commoners, The Complete Known Lineage of John of Gaunt, Son of Edward III, King of England, and Queen Philippa Fourth Edition, (Baltimore, Maryland: Genealogical Publishing Company, 2002). [S59] Weis, Frederick Lewis. Ancestral Roots of Sixty Colonists Who Came to New England Between 1623 and 1650 Fifth Editionif, (Baltimore, Maryland: Genealogical Publishing Co., 1982).