Yves Ier dit le Vieux de Beaumont-sur-Oise
- Born: 906, Beaumont-sur-Oise, Val-d'Oise, Île-de-France, France
- Marriage (1): Mathilde de Bidgau
- Died: 975, Senlis-en-Artois, Pas-de-Calais, Hauts-de-France, France aged 69
FamilySearch ID: GX3P-F16.
Yves married Mathilde de Bidgau, daughter of Wigerich Pfalzgraf von Lothringen Graf im Bidgau and Cunégonde de France. (Mathilde de Bidgau was born in 905 in Luxembourg, Grand-Duché de Luxembourg and died in Sep 1001 in Beaumont-sur-Oise, Val d'Oise, Ile-de-France, France.)
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