The castle of Kalamata is a typical example of the castles that the Franks founded in order to consolidate their sovereignty in the region. During the Byzantine years it was only a small Byzantine fort which had been converted into a monastery. That's why it became ans easy prey for the Knights of the Fourth Crusade,while it was formed in its present form immediately after the Frankish conquest in 1205.
For the next 6 centuries the Castle has been at the centre of great conflicts and is often changing hands. Franks, Slavs, Venetians and Ottomans, they tore it down in instalments and rebuilt it ,even more powerful until the First period of Ottoman rule where it was almost destroyed. Many also were the damage this castle suffered,during the removal of materials for the reconstruction of houses and schools in Kalamata.
As for today, the visitor will see on the hill the ruined outline of the Frankish Castle while in the northeast corner of the inner enclosure is built the fortified tower/shelter,where the ground floor is still preserved.
At the southern end of the castle a small theatre has been built in 1950 which hosts performances of space, music, etc.
A walk to the castle will also allow you to enjoy/admire the fantastic views of the city and of the Messinian bay beyond.