Under the Lev of Rožmitál family, the fortress was for the first time rebuilt in stone (the oldest parts being the tower and Rožmitálský Palace) and the surrounding marshes were changed into wide water trenches.
The fortress under the Lev of Rožmitál family was first built with stone (the oldest sections are the tower and Rožmitálský Palace), and the marshlands around it were altered to form extensive waterways.