Although some internet sources list Guy Comte de Soissons as the son of Adalbert I de Vermandois, the FMG Medieval Lands database does not find primary sources to support this and he is not listed as a son of Adalbert de Vermandois. He is primarily known as the father of Adelisa, Countess of Soissons, who married Nocher II Comte de Bar-sur-Aube:

1. GUY, son of --- . Comte de Soissons.

m ---. The name of Guy's wife is not known. Guy & his wife had one child:

a) ADELISA de Soissons . The primary source which confirms her parentage and marriage has not yet been identified. Ctss de Soissons. m NOCHER [II] Comte de Bar-sur-Aube, son of NOCHER [I] Comte de Bar-sur-Aube & his wife ---.