Fort Grosser Pfaffenberg

History of the fort

The Wielka Księża Góra Fort was built at the peak of the hill and on its western slope, on artificially formed terraces. The construction works started in 1889 and two infantry shelters and an ammunition shelter were completed just two years later. In the years 1894-1895, a complex of two connected shelters equipped with armor towers – the infantry barracks shelter and the armor battery – was built. In the years 1898-1900, another infantry barracks shelter and six two-chamber guardhouses built in the fort’s ramparts were built. Also, five double posts for portable 5.3 mm cannon towers were built in the rampart. Most likely in 1905, a two-chamber medical shelter was built and four reinforced-concrete observation posts were located in the moat. In the years that followed, the fort was electrified and a guardhouse was built at the main gate. The entire fort was surrounded by a fence made from fortress grates and a wide band of barbed wire entanglements.

During World War II, the Germans operated an ammunition and explosives store at the fort. In February 1945, the fort was taken over by the Soviet troops which used heavy howitzers to fire at the city. After the war, the Polish Army organized stores here. In 2000, the fort was sold to a private person but in the coming years its condition gradually deteriorated. The current owner has been trying since 2008 to restore the original condition of the fort.

What deserves particular attention?

A unique object is the armor howitzer battery – one of three such batteries present in Poland. In the roof of the shelter there are four armor towers of 15 cm howitzers, mk 93. Such towers, manufactured at the Gruson Factory in Magdeburg (soon to be taken over by the Krupp company) were once very expensive and modern structures. The rate of fire of the howitzers was 2 shots per minute and at the angle of inclination of 18-32° it increased to 4 shots per minute. The range of the howitzer was 7,200 m and the ammunition used was grenades. The tower was manned by 1 noncommissioned officer and 4 gunners.

Another interesting object is the rotating artillery observation tower, mk 94, which is unique because only four such towers were ever built. On the main infantry barracks shelter there is also an artillery observation tower mk. 96. It has a modernized, conical shape, which increases the likelihood of ricochets. The tower uses a Zeiss rangefinder, which significantly improved the accuracy of the observation.

All of the aforementioned armor towers are the only objects of this type in Poland. Visitors should take a walk in the underground tunnel that connects the infantry shelter (with the observation towers) to the armor battery. The tunnel, which is 90 cm wide and 2 m tall, was used not only for circulation of the soldiers, but also as a space for routing voice communication pipes and telephone wires.


Tourist services at the fort are provided by the Fort Wielka Księża Góra Association
Wielkie Lniska 22, 86-302 Grudziądz
tel. +48 607 399 030,