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From Rodovid EN

Lineage	Chay
Sex	Female
Full name (at birth)	Isabelle de Chay
Other given names	Isabelle de Chay, Herrin von Montfort

Events

child birth: ♂ Thierry von Mömpelgard [Montfaucon] d. 1287

marriage: ♂ Richard IV de Montfaucon [Montfaucon] d. estimated 1277

estimated 1273 death:

From grandparents to grandchildren