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In page Clara Tott:

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After Frederick I died in 1479, his successor Philip even held Clara prisoner at Lindenfels Castle for several years, just to keep the situation secret.[1] Contemporary historians describe the situation vaguely and express themselves very carefully, so as to not displease the powerful Palatinate.[citation needed] Later historians have adopted the unclear terminology of their predecessors, even when the issue became less important dynastically and historically[2]