"John VI, Duke of Mecklenburg (1439–1474) was a Duke of Mecklenburg." - (en.wikipedia.org 22.03.2020)
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brother of | Magnus II, Duke of Mecklenburg ↓ |
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brother of | Magnus II, Duke of Mecklenburg ↓ |
brother of | Magnus II, Duke of Mecklenburg ↓ |
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