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

FATHER Comte Guillaume III "le BON" d'HAINAULT d'AVESNES
	Birth	1 November 1286	Avesnes, Pas-de-Calais, Nord-Pas-de-Calais, France
	Death	8 June 1337	Valenciennes, Département du Nord, Nord-Pas de Calais, France
	Alias		Graaf Willem van HENEGOUWEN;
	Marriage	19 May 1305	Princesse Jeanne de VALOIS; Chanay, Aisne, Picardie, France
	Father	Comte Jean II d'AVESNES d'HAINAULT
	Mother	Comtesse Philippina de LUXEMBOURG-MAAS
MOTHER Geertruij Boudijns "Trude" van de POELE
	Birth	about 1310	Nord-Pas de Calais, France
	Death	about 1350
	Father	Boudewijn "Boudijn" van de POELE
CHILDREN
M	Jean "Jan" AELMAN van DOLRE
	Birth	about 1320	Le Quesnoy, Avesnes-sur-Helpe, Département du Nord, Nord-Pas de Calais, France
	Death	1389
	Burial	16 December 1389	Valenciennes, Département du Nord, Nord-Pas de Calais, France
	Occupation		ridder, raad van Holland (1346 en 1356), raad van Henegouwen (1380), heer van Woerden, Schotervlieland en het huis Te Nesse in Holland (01-02-1356) en van Curies en Devaing in Henegouwen;
	Marriage	before 14 December 1344	Justine de GOUWER;
	Marriage	before 27 January 1375	Machteld van WULVENHORST;