A grand principality is the territory reigned by a grand prince.
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- Grand Principality of Moscow (Russian: Великое Княжество Московское, Velikoye Knyazhestvo Moskovskoye)
- Grand Principality of Finland
- Grand Principality of Lithuania - for translations see Grand Principality of Lithuania#name
- Serbian Grand Principality - Велика кнежевина Србија
- Grand Principality of Transylvania
- Grand Principality of Iberia