The Dutch and American Gase and related families

The Family Tree of the American Gase, Moermond, Boes, Steigmeyer, Elchert, Nye and Yost families
The Family Tree of the Dutch Gase, Van Stein, Weder, Van der Fluit, Mortel and Moermond families
Family Group Sheets
(compiled by Ronald A. Gase. Please email me for corrections, additions, questions or if you have special personal requests)
Tree currently contains 154,002 individuals and 65,753 families.
(site updated Saturday, October 24th, 2025)
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Family Group Sheet

HUSBAND Comte Matthieu I d'ALSACE
	Birth	about 1137	Vlaanderen, België
	Death	25 July 1173	Driencourt, Département de la Somme, Picardie, France
	Marriage	1160	Département Pas-de-Calais, Nord-Pas-de-Calais, France
	Father	Comte Thierry III d'ALSACE de LORRAINE
	Mother	Sybille d'ANJOU de FLANDRE
WIFE Comtesse Marie de BLOIS
	Birth	about 1136	Blois, Département de Loir-et-Cher, France
	Death	25 July 1182	Sainte-Austreberthe, Département Pas-de-Calais, Nord-Pas-de-Calais, France
	Father	Roi Étienne "Stephen, King of ENGLAND" de BLOIS (de l'ANGLETERRE)
	Mother	Comtesse Mathilde "Maud" de BOULOGNE de LENS
CHILDREN
F	Comtesse Mathilde "Maud" d'ALSACE de FLANDRE (ou de BOULOGNE)
	Birth	1 November 1163	Boulogne, Département de Pas-de-Calais, Nord-Pas-de-Calais, France
	Death	16 October 1210	Leuven, Brabant, België
	Burial		St. Pieterskerk, Leuven, Brabant, België
	Marriage	30 March 1180	Duc Henri I "le Courageux ou le Guerroyeur" de LORRAINE de BRABANT;