Agnes was the daughter of Erkinger I von Schwarzenberg and Anna von Bibra. The date and place of her birth have not been found.
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Erkinger I von Schwarzenberg |
Michael I von Seinsheim |
Hildebrand IV von Seinsheim |
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Markéta z Rózmberka |
Petr I z Rožmberka |
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Kateřina z Vartemberka |
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Anna von Bibra |
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