Sieghard was the son of Günther XII von Schwarzburg-Blankenburg and Mechiltd von Käfernburg. The date and place of his birth have not been found.
He died in BET 1316 AND 1326. The place is not known.
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Sieghard von Schwarzburg-Blankenburg |
Günther IX von Schwarzburg-Blankenburg |
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Helene von Sachsen-Lauenburg |
Johann I von Sachsen-Lauenburg |
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Ingeborg Birgersdotter av Sverige |
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Mechiltd von Käfernburg |
Günther VI von Käfernburg-Ilmenau |
Günther V von Käfernburg |
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Sofie von Schlüsselberg |
Eberhard II von Schlüsselberg |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Death | BET 1316 AND 1326 |
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