Yves Ier de Beaumont-sur-Oise

comte de Beaumont-sur-Oise
seigneur de Conflans-Sainte-Honorine

Born circa 960
Deceased in 978, at the approximate age of 17 years

Family

Married with Gisla de Vermandois (c. 950 - aft. 975), issuing
- Yves II (c. 975 - 1059)

- Genealogy
- Descendants
- Kinship Calculation