Regnier III Count of Hainaut
Regnier III was born about 0918 in Hainaut, Netherlands.  He died before 0988.

 Adele von Dagsburg
Adele was born about 0922.  She died in 0961.

 Regnier IV Count of Hainaut
Regnier IV was born in 0950 in Reims.  He died at the age of 63 in 1013.

 Lambert I de Louvain Count of Louvain
Lambert I de Louvain was born about 0958 in Louvain, Brabant, Flanders, Belgium.  He died on September 12th, 1015.