DescriptionTopografia da Gli avanzi del castello di Trezzo 1886.jpg
English: The peninsula formed by the Adda river with the position of the remains of the Early Middle Age fortifications (a, c) and the Visconti Castle (b).
Date
Source
Ariberto Crivelli: Gli avanzi del castello di Trezzo - L'antico ed il nuovo ponte sull'Adda, Milano, 1886
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