Radzyń Chełmiński Castle

The castle occupies a compact, roughly square plan and was built primarily of brick. The high inner ward consists of four ranges set around a central courtyard, forming a quadrangular layout. Recorded plan measurements vary, with one set of dimensions close to 52 by 52 metres and another giving about 49.4 by 49.6 metres for the inner castle; the great hall side lengths are recorded near 52.4 metres. The castle stood beside a body of water known as Castle Lake and was protected by foreworks on the south and east sides, including a trapezoidal bailey to the south with its own surrounding curtain wall and a probable additional outer enclosure to the east.

A freestanding octagonal defensive tower, the principal keep or bergfried, occupied the north‑west corner; its foundations survive. Each corner of the high castle was also reinforced by smaller, roughly rectangular or square towers. Some corner towers were built with very thick walls, measured at about 5.3 metres, and at least two turrets remain accessible today. The outer ward between the inner and outer walls was unusually wide, about 10 metres, providing an additional line of defence before the ditches that protected the site.

The inner courtyard was enclosed by two levels of vaulted galleries opening onto the courtyard on all four sides. These galleries faced inward and were covered by vaulting on two storeys, with access to the upper floor by spiral staircases. The south wing accommodated the main gate and contained the refectory and the chapel, while the east wing held the chapter hall and the dormitory. The refectory measured roughly 8.8 by 18.2 metres. The chapter hall and the chapel occupied the upper floors in the east and south ranges respectively in the castle’s original internal arrangement.

The chapel was a prominently vaulted, tall‑windowed space with wall paintings and ribbed vaulting that once rose into the roof structure. The south wing retains much of its exterior façade and the chapel survives in part, with the vault no longer intact; in the twentieth century a reinforced‑concrete covering was placed over the chapel roof. Cellars and ground‑floor rooms beneath the wings survive with simple cross vaults and have undergone clearance and conservation work; several basement vaults remain visible and have been stabilized.

Defensive outworks include substantial ditches recorded at about 21 metres and 35 metres in width beyond the outer ward, and an external facing wall measuring about 1.9 metres thick. The gate was fitted with architectural niches, and above the entrance a one‑metre‑deep recess is recorded. Along the west side of the outer ward a row of projecting garderobes, latrine chambers accessible from the upper floor by an arched gallery, once cantilevered from the wall. Only the supporting corbels for those projecting latrines remain in place, but estimates indicate the row originally comprised about nine individual garderobe oriels.

Brick was the principal building material and the castle included decorative brickwork. The taller corner towers and upper façades showed patterned use of dark bricks set against red brickwork to form a net‑like exterior ornament, and the courtyard walls within the cloister were faced with alternating yellow and green glazed bricks. Today the site stands as a partial ruin: the southern façade and much of the chapel are still recognizable, two corner turrets and adjoining sections of the east wing remain, fragments of other wings’ walls persist, cellar vaults and basements are exposed, the bergfried foundation survives in the north‑west, lower stretches of the outer‑bailey walls can be seen, and the corbels of the garderobe row project from the west wall. Conservation and archaeological clearing in the twentieth century revealed additional elements such as an outer barbican wall, and the surviving masonry has been stabilized and preserved in situ.