The castle was built in the middle of the 14th century on the order of castellan Mikołaj Nałęcz from Chomiąża. After his death in the fifteenth century it passed into the hands of the Pomian family. Between 1411 and 1420 it burned. In 1420 Mikołaj of Warzymowo sold it to the archbishop of Gniezno, Mikołaj Trąba. It was later expanded by archbishops and served as their most important residence on the Pałuki land. At the castle were the bishop’s starosts, and there was also a prison for criminals subjects to the church court. In the years 1464-1473 the castle was the residence of the general governor of Wielkopolska, Piotr Nałęcz from Szamotuły. At the end of the 15th century, after the threat of the Teutonic Order ceased, it lost its importance, its defensive and residential values and was partially demolished for the construction material of the new bishop’s residence in Żnin. In the following centuries, the castle fell into ruin.
The castle was on a small hill on the isthmus between the lakes. It was set on a square plan with a side of 33.5 meters with circumferential walls, a quadrilateral tower in the corner of the north-east and house in the western curtain. To the courtyard ran the archway through the foregate from the south. After 1420 new rooms were erected, including the chapel. There was also an extensive defensive system of the gate, and the entire site was surrounded by an outer peripheral wall. In the corners were cylindrical towers adapted to artillery fire.
The castle has survived in the form of a poorly preserved ruin. Currently it is adapted for sightseeing. The entrance to the castle in the summer is possible in the hour. 9.00-18.00.
Leksykon zamków w Polsce, L.Kajzer, S.Kołodziejski, J.Salm, Warszawa 2003.