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Hohentwiel . Description Engraving by Matthus Merian shows the siege of the Hohentwiel fort in naer Singen BadenWrttemberg Source probably Topographia Germania Edition Topographia Sveviae schloessermagazin de php The author died in so its public domain Beschreibung Kupferstich von Matthus Merian zeigt die Schlacht der Festung