Disambiguation evidence for Louis César de Bourbon, Count of Vexin via surface form

"Louis-César de Bourbon, Duke of Penthièvre"

Triples (1)

Triples where some other subject referred to this entity as "Louis-César de Bourbon, Duke of Penthièvre".

Louis César de Bourbon, Count of Vexin → sibling →
"Louis-César de Bourbon, Duke of Penthièvre"
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