See also

Baldwin FLANDERS's parents: Baldwin I of FLANDERS (c. 835-879) and Judith de FRANCE (c. 843-c. 870)
Baldwin FLANDERS's siblings: Emina d' AVRANCHES (c. 862- ), Charles of FLANDERS ( - ), Rodolphe de CAMBRAI (c. 865-896) and Guinidilda of FLANDERS ( - )
Aefthryth WESSEX's parents: Alfred 'the Great' of WESSEX (849-899) and Ethelswitha (Ealhswith) of MERCIA (c. 855- )
Aefthryth WESSEX's brother: Edward 'the Elder' of WESSEX (c. 875-924)

Family of Baldwin II of FLANDERS and Aefthryth of WESSEX

Husband:	Baldwin II of FLANDERS (c. 865-918)
Wife:	Aefthryth of WESSEX ( - )
Children:	Arnulf I 'the Great' of FLANDERS (889-965)
	Adelolf of BOULOGNE (c. 890-933)
	Ealswid van VLAANDEREN ( - )
	Ermentrude van VLAANDEREN ( - )

Husband: Baldwin II of FLANDERS

Name:	Baldwin II of FLANDERS
Sex:	Male
Father:	Baldwin I of FLANDERS (c. 835-879)
Mother:	Judith de FRANCE (c. 843-c. 870)
Birth	c. 0865
Occupation		2nd Count of Flanders
Death	10 Sep 0918 (age 52-53)

Wife: Aefthryth of WESSEX

Name:	Aefthryth of WESSEX
Sex:	Female
Father:	Alfred 'the Great' of WESSEX (849-899)
Mother:	Ethelswitha (Ealhswith) of MERCIA (c. 855- )

Child 1: Arnulf I 'the Great' of FLANDERS

Name:	Arnulf I 'the Great' of FLANDERS
Sex:	Male
Spouse:	Adele de VERMANDOIS ( - )
Birth	12 Dec 0889
Occupation		Count of Flanders
Death	28 Mar 0965 (age 75)

Child 2: Adelolf of BOULOGNE

Name:	Adelolf of BOULOGNE
Sex:	Male
Spouse 1:	Mahaut de CREQUY (c. 880-930)
Birth	c. 0890	Boulogne-sur-Mer, Pas-de-Calais, Nord-Pas-de-Calais, France
Occupation		Count of Saint-Pol, Count of Boulogne and of Thérouanne
Death	13 Nov 0933 (age 42-43)

Child 3: Ealswid van VLAANDEREN

Name:	Ealswid van VLAANDEREN
Sex:	Female

Child 4: Ermentrude van VLAANDEREN

Name:	Ermentrude van VLAANDEREN
Sex:	Female

Note on Husband: Baldwin II of FLANDERS

Wikipedia: Baldwin II's extensive lands and many offices in what is now the north of modern France and the west of Belgium were divided among his sons on his death in 918.