Baldwin IV was count of Hainaut from 1120 to his death. He was the son of Baldwin III, Count of Hainaut

Baldwin III, Count of Hainaut

Baldwin III was count of Hainaut from 1098 to his death. He was son of Baldwin II, Count of Hainaut and Ida of Leuven.-History:Baldwin succeeded to the county of Hainaut in 1102. Baldwin married Yolande of Guelders at a young age. He had been betrothed to Adelaide of Maurienne, a niece of Countess...

, and Yolande de Wassenberg.

History

Also known as Baldwin the Builder, he purchased the property of Ath

Ath

Ath is a Belgian municipality located in the Walloon province of Hainaut. The Ath municipality includes the old communes of Lanquesaint, Irchonwelz, Ormeignies, Bouvignies, Ostiches, Rebaix, Maffle, Arbre, Houtaing, Ligne, Mainvault, Moulbaix, Villers-Notre-Dame, Villers-Saint-Amand, Ghislenghien...

 in 1158 and built the Burbant tower. He ceded the locality of Braine-la-Willotte also known as Braine-le-Comte

Braine-le-Comte

Braine-le-Comte is a Walloon municipality located in the Belgian province of Hainaut.On January 1, 2006, Braine-le-Comte had a total population of 20,305...

 to the chapter of Sainte-Waudru in 1158. In 1159, he incorporated the seigniory of Chimay

Chimay

Chimay a Walloon municipality located in the Belgian province of Hainaut. On January 1, 2006, Chimay had a total population of 9,774. The total area is 197.10 km² which gives a population density of 50 inhabitants per km²...

 and in 1160, the châtellenies of Valencians and of Ostrevent.

Family

Baldwin married Alice of Namur

Alice of Namur

Alice of Namur was the heiress of Namur when her brother Henry IV of Luxembourg died childless in 1196. She was the wife of Baldwin IV Count of Hainault...

, heiress of Namur, and had the following issue:

• Yolande (1131–1202), married Hugh IV, Count of St Pol
• Baldwin (1134–1147)
• Agnes (1142–1168), married Raoul I de Coucy and had issue including Yolande de Coucy, wife of Robert II, Count of Dreux.
• Geoffrey, Count of Ostervant (1147–1163)
• William (Guillaume) (?–1230), married Mahaut de Lalaing
• Lauretta (1150–1181), married Bouchard IV, Count of Montmorency
• Baldwin V
  Baldwin V, Count of Hainaut
  Baldwin V of Hainaut was count of Hainaut , count of Flanders as Baldwin VIII and margrave of Namur as Baldwin I .-History:...
  
   (1150–1195), also count of Flanders
  Count of Flanders
  The Count of Flanders was the ruler or sub-ruler of the county of Flanders from the 9th century until the abolition of the position by the French revolutionaries in 1790....
  
   by his marriage to Margaret I of Flanders

See also

• Counts of Hainaut family tree
  Counts of Hainaut family tree
  This is a family tree of the Counts of Hainaut, sometimes spelled though not pronounced Hainault from 1055 to 1432, when the County of Hainaut and the County of Holland are incorporated in the estates of the Duchy of Burgundy, following the end of the Hook and Cod wars...