Baldwin IV, Count of Hainaut

1099 - 1171  (72 years)

• Name	Baldwin IV
  Nickname	le Bâtisseur
  Birth	1099  [1, 3]
  Title(s)	1120 (21 years)  [3]
  In 1120, he became the Count of Hainaut.
  Death	8 Nov 1171  [1, 2, 3, 4]
  Burial	Aft 8 Nov 1171	St. Waldthud Abbey, Mons, Provence-Alpes-Côte d'Azur, France   [1]
  Patriarch & Matriarch	Lideric, Forester of Flanders   (11 x Great Grandfather)  Ermentrudis  (4 x Great Grandmother)
  Person ID, Branch	I3295	Roy Line, Boudreau Line
  Last Modified	22 Jun 2025

  
  

  Father	Baldwin III, Count of Hainaut,   b. About 1088   d. 1120 (Age 32 years)
  Mother	Yolande of Guelders
  Family ID	F2691	Group Sheet  |  Family Chart

  
  

  Spouse / Partner	Alice de Namur,   b. About 1115   d. Jul 1169 (Age 54 years)
  Marriage	1130  [1, 2, 3, 4]
  Age at Marriage	He : ~ 31 years - She : ~ 15 years.
  Children	1 son and 1 daughter
  +   1. Agnes of Hainault,   b. Abt 1142   d. Between 1168 and 1173 (Age 26 years)  [Father: Birth]  [Mother: Birth] ▻ Raoul I de Coucy, Sire de Coucy and Marle  m. Before 1164 +   2. Baldwin V, Count of Hainaut and Namur,   b. 1150   d. 17 Dec 1195, Mons, Provence-Alpes-Côte d'Azur, France (Age 45 years) ▻ first wife;   Marguerite of Lorraine  m. Apr 1169
  Family ID	F2690	Group Sheet  |  Family Chart
  Last Modified	15 Jan 2022

  
  

• Pedigree

  ← Click to display 1Baldwin IV, Count of Hainaut(1099 – 1171) 2Baldwin III, Count of Hainaut(1088 – 1120) 4Baldwin II, Count of Hainaut(1056 – 1099) 8Baldwin I de Mons, Count of Hainaut(Abt 1030 – 1070) 16Baldwin V de Lille, Count of Flanders(1012 – 1067) 17Adelaide of France, Princess of France(1009 – 1078) 9Richilde von Egisheim( – 1086) 18 19 5Ida of Louvain(1065 – 1139) 10Henry II of Brabant, Count of Louvain(1020 – 1078/79) 20Lambert II, Count of Louvain and Brussels(990 – 1054) 21Oda( – 1044) 11Adelaide of the Betuwe(1045 – 1086) 22Eberhard von der Betuwe und Tristerbaut, Count in the Betuwe 23 3Yolande of Guelders 6Gerard I Flaminus, Count of Wassenburg and Guilders(1053 – 1138) 12Dietrich Flamens, Count in the Velue( – 1092) 24Gerard Flamens, Count of Teisterbant 25 13 26 27 7Clemence of Poitou(1060 – 1129) 14William V, Count of Poitou(1023 – 1058) 28William III, Count of Poitou(969 – 1030) 29Agnes of Burgundy, Princess of Lombardy(995 – 1068) 15Ermesinde of Longwy( – 1058) 30Adalbert III, Count of Longwy and Duke of Upper Lorraine(1000 – 1048) 31Clemence de Foix

  
  

• Event Map		Burial - Aft 8 Nov 1171 - St. Waldthud Abbey, Mons, Provence-Alpes-Côte d'Azur, 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). [S64] Langston, Aileen Lewers and J. Orton Buck Jr. Pedigrees of Some of the Emperor Charlemagne's Descendants volume II, (Cottonport, Louisiana:Order of the Crown of Charlemagne , 1974 ). [S63] von Redlisch, Marcellus Donald Alexander R. Pedigrees of Some of the Emperor Charlemagne's Descendants volume 1 , (Cottonport, Louisiana: Order of the Crown of Charlemagne, 1941).