Disambiguation evidence for Duchy of Upper Silesia via surface form
"Upper Silesian principality"
Triples (1)
Triples where some other subject referred to this entity
as "Upper Silesian principality".
Duchy of Opole and Racibórz
→
regionType
→
"Upper Silesian principality"
ⓘ
↳ resolves to Duchy of Upper Silesia