Henry de Gand of Bourgourgh
Henry de Gand of was born before 1025.  He died after 1040.

 Sibyl (Rose) de Manasses of Guisnes
Sibyl (Rose) de Manasses of was born before 1025.  She died after 1040.

 Beatrice de Gand
Beatrice was born about 1040 in Bourboucy, France.