Baldwin IV, Count of Hainaut

Baldwin IV
Depiction of Baldwin IV's marriage to Alice of Namur in the Chronicles of Hainaut
Born1108 (1108)
Died8 November 1171(1171-11-08) (aged 62–63)
Noble familyHouse of Flanders
SpouseAlice of Namur
IssueBaldwin V, Count of Hainaut
FatherBaldwin III, Count of Hainaut
MotherYolande de Wassenberg

Baldwin IV (1108 – 8 November 1171) was count of Hainaut from 1120 to his death.

Baldwin IV was the son of Count Baldwin III of Hainaut and Yolande de Wassenberg. Also known as Baldwin the Builder, he purchased the property of Ath in 1158 and built the Burbant tower. He ceded the locality of Braine-la-Willotte, also known as Braine-le-Comte, to the chapter of Sainte-Waudru in 1158. In 1159, he incorporated the seigniory of Chimay and in 1160 the châtellenies of Valencians and of Ostrevent.