Nielsen Hayden genealogy
David Williams, "Ebel III and Ebal IV de Grandson." Foundations, journal of the Foundation for Medieval Genealogy, volume 13, 2021.
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Title David Williams, "Ebel III and Ebal IV de Grandson." Foundations, journal of the Foundation for Medieval Genealogy, volume 13, 2021. Source ID S5859 Linked to (Unknown daughter of Amadeus I of Geneva)
Jordane
Barthelemy de Grandison
Ebel de Grandison
Pierre de Grandison