Disambiguation evidence for Gerberga of Chalon via surface form

"Gerberga of Upper Burgundy"

Triples (1)

Triples where some other subject referred to this entity as "Gerberga of Upper Burgundy".

Herman II, Duke of Swabia → spouse →
"Gerberga of Upper Burgundy"
↳ resolves to Gerberga of Chalon
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