Hugh I Seigneur D' Oisy
Hugh I Seigneur D' was born about 1002 in Oisy, Namur, Belgium.  He died after 1048.

 Adela De Cambrai
Adela De was born about 1008 in Cambrai, France.

 Hugh II Seigneur D' Oisy
Hugh II Seigneur D' was born about 1040 in Oisy, Namur, Belgium.

 Wynemar "The Fleming" De Hanslape
Wynemar "The Fleming" De was born in 1042 in Oisy, Namur, Belgium.  He died about 1075 in Hanslope, Buckinghamshire, England.