In the courtyard inside the Fortress' Museum (the place for theatre shows and concerts during the summer) there are two bastions (Male and Female) where in ancient times a garrison of soldiers used to live. At the end of the XVIII century the Fortress became a prison (until the 1967). Inside the Female Bastion there is the Agricultural Museum.
The tall ancient walls link the Malatestas' Fortress to the Old Fortress (residence of Federico Barbarossa in 1177, and residence of Federico II from Swabia in 1241) that was conquered by the Cardinal Albornoz in 1357. After the construction of a stronger Fortress by Malatesta during the XV century, the Old Fortress was abandoned.

 
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