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