Its name derives from a legend of the corrupt Prince Popiel, whose fled to the tower from his rebelling population, and was devoured there by mice.
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Some historians and archaeologists consider the area the heart of the first state of the Polans, the "founding" tribe of Poland.
Gopło |
In April 2008, five thousand people demonstrated in Kruszwica to protect cultural heritage and the nature reserve at Lake Gopło, against the Tomisławice opencast mine, which was due to open in 2009.