1. | Hartwich van Regensburg Family/Spouse: Unknown. [Group Sheet] [Family Chart]
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2. | ,,,,,,,,,,, van Regensburg (1.Hartwich1) Family/Spouse: Friedrich II van Diessen. [Group Sheet] [Family Chart]
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3. | Berthold I van Schwarzenburg (2.,,,,,,,,,,,2, 1.Hartwich1) Family/Spouse: Richardis van Spanheim. [Group Sheet] [Family Chart]
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4. | Engelbert van Schwarzenburg (3.Berthold3, 2.,,,,,,,,,,,2, 1.Hartwich1) Family/Spouse: ........... van Müllenark. [Group Sheet] [Family Chart]
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