Johann was the son of Heinrich I von Mecklenburg and Anastasia von Pommern-Wolgast. The date and place of his birth have not been found.
He died on 27 JAN 1289. The place is not known.
His wife was Helene von Rügen, who he married on 3 NOV 1288. The place has not been found. They had no known children.
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Johann III von Mecklenburg |
Heinrich I von Mecklenburg |
Johann I von Mecklenburg |
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Luitgard von Henneberg |
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Anastasia von Pommern-Wolgast |
Barnim I von Pommern-Wolgast |
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Marianna av Sverige |
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| Event | Date | Details | Source | Multimedia | Notes | ||
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| Death | 27 JAN 1289 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | FROM 1287 TO 1289 | fürst zu Mecklenburg |