Principality of Rus'
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(Redirected from Duchy of Ruthenia)
Principality of Rus' or Duchy of Rus' may refer to:
- Principality of Halychian Rus', an East Slavic medieval state, centered in Halych
- Principality of Volhynian Rus', an East Slavic medieval state, centered in Volhynia
- Principality of Halych-Volhynian Rus', an East Slavic medieval state, uniting Halych and Volhynia
- Principality of Rus' (1658), a proposed state in Eastern Europe
- Duchy of Rus' (voivodeship), a province of the early modern Kingdom of Poland (from 15th to 18th century)