Disambiguation evidence for Duke of Racibórz via surface form

"Duke of Racibórz (co-ruler)"

Triples (1)

Triples where some other subject referred to this entity as "Duke of Racibórz (co-ruler)".

Bolesław I of Cieszyn → positionHeld →
"Duke of Racibórz (co-ruler)"
↳ resolves to Duke of Racibórz
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