Gislebert van Loon was born circa 980 to Otto van Loon (c963-bef1016) and Luitgarde de Namur (?-?) and died circa 1045 of unspecified causes. He married Erlande van Geldenaken (?-?) . Charlemagne (747-814), Alfred the Great (849-899)/s, Charlemagne (747-814)/s.
Gislebert's life is not well-documented. Grandfather Rudolf may have been his father. Mother Luitgarde may have been Gislebert's wife. Daughter in law Suanhilde may have been his wife. Granddaughter Sophie may have been a daughter.
|Offspring of Gislebert van Loon and Erlande van Geldenaken (?-?)|
|Emmon van Loon (?-1078)||1078||Swanhilde van Holland (?-?)|
|Otto de Duras (c1020-1101)||1020||1101||Oda de Duras|
|Herman van Gronsveld (c1035-c1082)||1035||1082|