Konrad was born in 1413, the son of Bolesław III von Massow and Anna Ivanovna Holczanska. The place is not known.
He died in 1427. The place is not known.
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Konrad von Massow |
Bolesław III von Massow |
Janusz I von Massow |
Ziemowit III von Massow |
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Eufemie Opavská |
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Danuta Anna of Lithuania |
Kęstutis |
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Birutė |
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Anna Ivanovna Holczanska |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | 1413 |
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| Death | 1427 |
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