Henry "The Blind" of Namur
Henry "The Blind" of was born in 1099.  He died at the age of 97 in 1196.

 Agnes Von Geldern
Agnes was born about 1156 in Zutphen, Gelderland, Netherlands.  She died after 1186.

 Ermesend II de Namur
Ermesend II was born in July 1186.