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 Bouchard IV d'AVESNES d'ÉTROEUNGT
	Birth	1182	Oizy, Belgique
	Death	7 September 1244	Rupelmonde, Kruibeke, Oost-Vlaanderen, België
	Marriage	1212	Oizy, Belgique
	Father	Seigneur Jacques I d'AVESNES
	Mother	Dame Adèle de GUISE
WIFE Comtesse Margaret II de FLANDRE d'HAINAULT
	Birth	2 June 1202	Valenciennes, Département du Nord, Nord-Pas de Calais, France
	Death	10 February 1280	Valenciennes, Département du Nord, Nord-Pas de Calais, France
	Father	Comte Baudouin V "le Courageux" de FLANDRE d'HAINAULT
	Mother	Comtesse Marguerite d'ALSACE
CHILDREN
M	Comte Jean I d'AVESNES d'HAINAULT
	Birth	1 May 1218	Houffalize, Luxembourg, Belgique
	Death	24 December 1257	Valenciennes, Département du Nord, Nord-Pas de Calais, France
	Marriage	September 1246	Comtesse Aleidis "Aleida" van HOLLAND; Nassau, Germany