Disambiguation evidence for Casimir I, Duke of Cieszyn via surface form

"Dux Cieszynski"

Triples (1)

Triples where some other subject referred to this entity as "Dux Cieszynski".

Piasts of Cieszyn → usedTitle →
"Dux Cieszynski"
↳ resolves to Casimir I, Duke of Cieszyn
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