Katharina was the daughter of Franz I von Sachsen-Lauenburg and Else Rautenstein. The date and place of her birth have not been found.
Her husband was Johann Grotjan, who she married in 1579. The place has not been found. They had no known children.
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Franz I von Sachsen-Lauenburg |
Magnus I von Sachsen-Lauenburg |
Johann IV (V) von Sachsen-Lauenburg-Ratzeburg |
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Dorothea von Brandenburg |
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Katharina von Braunschweig-Wolfenbüttel |
Heinrich I von Braunschweig-Wolfenbüttel |
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Katharina von Pommern |
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