Agnes was the daughter of Siegmund I von Gleichen-Tonna and Agnes von Querfurt. The date and place of her birth have not been found.
Her husband was Günther IV (III) von Mansfeld-Vorderort. They were married, but the date and place have not been found. They had no known children.
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Siegmund I von Gleichen-Tonna |
Ernst VIII (II, IX) von Gleichen |
Ernst I (VI/VII) von Gleichen |
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Agnes z Koldic |
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Margarete von Henneberg-Schleusingen |
Heinrich XI (V) von Henneberg-Schleusingen |
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Mechtild von Baden |
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Agnes von Querfurt |
Protze III von Querfurt-Naumburg |
Gebhard XIV von Querfurt-Naumburg |
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Mechtilde von Schwarzburg-Blankenburg |
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Agnes von Beichlingen-Wiehe |
Friedrich XIV von Beichlingen-Wiehe |
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Mathilde von Mansfeld-Querfurt |
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