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Family name Mstislavskii (Mstislavskii , Мстиславский ) , worldwide, is a rare cognomen. The family name Mstislavskii is characteristic of Eastern Europe, particularly Russia, where it is a rare surname, and Belarus, where it is a very rare surname.
VARIANT | COUNTRY |
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Mstislavskii | Russia |
Мстиславский | Belarus, Russia |