
| 1. | Ingeborg of Holstein-Plön was born in 1263; died in 1292. Family/Spouse: Unknown. [Group Sheet] [Family Chart]
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| 2. | Gerhard IV of Holstein-Plön Family/Spouse: Unknown. [Group Sheet] [Family Chart]
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| 3. | Ingeborg of Brunswick Family/Spouse: Conrad I Oldenburg, Count of Oldenburg. [Group Sheet] [Family Chart]
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| 4. | Christian V Oldenburg, Count of Oldenburg Family/Spouse: Countess Agnes Honstein Heiringen. Countess was born in 1340 in Oldenburg, Niedersachsen, Germany; died on 1 September 1404 in Oldenburg, Niedersachsen, Germany. [Group Sheet] [Family Chart]
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