(1) He is married to Richilde (Rothilde Bichilde) de HAINAUT.Source 1
They got married.
Child(ren):
Comte de Flandres
Comte de Flanders e Hainaut, COUNT OF FLANDERS VI AND HAINAUT I, Count of Flanders, 8ʻ, Comte, de Flandre, 1067, d'Artois, de Hainaut, 1051, de Valenciennes, de Mon, Greve i Flandern 1067-70, och Hainault 1051-70 som baldwin I, markgreve i Antwerpen, Comte de Flandre 1067 – 1070