Disambiguation evidence for Frederick I of Saxony via surface form

"Frederick III, Landgrave of Thuringia"

Triples (1)

Triples where some other subject referred to this entity as "Frederick III, Landgrave of Thuringia".

Frederick I of Saxony → father →
"Frederick III, Landgrave of Thuringia"
↳ resolves to Frederick I of Saxony
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