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From Rodovid EN

Lineage	Grandson
Sex	Male
Full name (at birth)	Guillaume de Grandson
Parents ♂ Pierre de Grandson [Grandson] ♀ Bonne de Savoie-Vaud [Savoie]

Events

property: Seigneur de Sainte-Croix

marriage: ♀ Jeanne de Vienne [Vienne] d. before 23 January 1372

1386 death:

From grandparents to grandchildren