formerly: Kietzer Tor. This object was not initially a gate. Until 1888, it was a point that connected the island (Chyża) on the other side of the Warta with the fortress, which was later transformed into a moat. At that time, it was only a small tunnel in the building, which allowed the Chyżanie family to deliver their products to the Kostrzyn court and to the market. In 1631, in front of the then Chyżańska Furta, Swedish troops built a ravelin, which provided it with additional protection from Frankfurt. It is also important that there was still a fishing harbor in its area at that time. After changing the Warta riverbed and moving the marina to the Brandenburg Bastion, the facility was rebuilt to its current form. During the war in 1945, the building was almost completely destroyed and was rebuilt using EU funds only in 2007.