| E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898. |
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The four fortresses of Peschiera and Mantua on the Mincio, with Verona and Legnago on the Adigë. Now demolished. | 1 |
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The Prussian Quadrilateral. The fortresses of Luxemburg, Coblentz, Sarrelouis, and Mayence. | 2 |
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