As part of Operation Tannenberg (, ), an organized anti-Polish extermination, Nazi Germany committed many mass murders in present-day Kuyavian-Pomeranian Voivodeship, mainly in the first months of WWII.

Rejencja Bydgoska Under Nazi rule, the present territory of Kuyavian-Pomeranian Voivodeship was under the control of two different administrative bodies (Reichsgau): the Reichsgau Danzig-West Prussia in the north and the Reichsgau Wartheland (Poznań) in the south.

Overview Shootings were conducted with the use of a proscription list targeting Poland’s elite, compiled by the Gestapo in the two years before the invasion of Poland.Unternehmen Tannenberg - August 1939: Wie der SD den Überfall auf Polen vorbereitete (III) bei wissen.spiegel.de (PDF file, direct download). SS Einsatzgruppen have been carrying out the mass executions.

Operation Tannenberg was followed by the shooting and gassing of hospital patients and disabled adults, as part of the wider Aktion T4 programme.

Furthermore, the present Kuyavian-Pomeranian Voivodeship territory housed several prisoner of war (POW) camps, Oflags ("Officer camp") or Stalags ("Base camp") for enlisted POWs: Oflag 64 in Szubin; a sub-camp of Stalag XXI B in Tur; Stalag XX-A in Toruń.

Concentration sub-camps In the region were also installed sub-camps subordinated to the Stutthof concentration camp, especially in: Potulice; Bydgoszcz; Cieszyny; Grodno; Chorab; Grudziądz.

Mass euthanasia (Aktion T4) SS functionaries, hospital staff and police personnel performed killings by shooting and gassing hospital patients and disabled adults.

In the Kuyavian-Pomeranian Voivodeship territory, the hospital of Świecie saw the execution of 1350 people between October and November 1939.

At the end of September 1939, a special Nazi commission headed by Dr. Erich Grossman began a selection of patients, directly sentencing most of them to death. Only around 300 of those fit for work were taken to a hospital in Kocborowo, but they were later murdered in the Szpęgawsk Forest. Józef Bednarz, the Polish hospital director at the time, died along with the patients in Mniszek.

Mass killings Valley of Death

In the Valley of Death (), located in Fordon, Bydgoszcz, Nazi Germans committed the mass murder of 1,200–1,400 Poles and Jews at the beginning of World War II (October and November 1939). The executions were performed by the local German Selbstschutz and the Gestapo.Encyklopedia PWN, Intelligenzaktion. September–November 1939.

Brzezinki Mass arrests of the inhabitants of Brodnica and the Brodnica district began in mid-October 1939 and were carried out mainly by local Selbstschutz. Arrested people were usually placed in several basements: the infamous Villa Krasiński, a house at Paderewskiego street where were located the headquarters of the Brodnica Gestapo, a monastery building at Sądowa street and for a certain period in the military barracks at Czwartaków street.

The prisoners were very often personally abused by the head of the Brodnica Selbstschutz, Kurt Kortas. In addition, prisoners were given starvation rations, and their families were forbidden from bringing food parcels.

Mass executions usually took place in the forest on the Birkenek estate (currently Brzezinki) near Zbiczno, a few kilometres north of Brodnica. Before the war, the estate belonged to Kurt Höltzel, a well-known German cooperative activist who died during the evacuation in September 1939. The mass executions lasted from 10 to 28 October 1939.

State Police Commissariat in Rypin

In the former headquarters of the State Police Commissariat in Rypin, during the early months of the German occupation of Poland, members of the paramilitary Volksdeutscher Selbstschutz and Gestapo officers detained, tortured, and murdered the residents of the Dobrzyń Land. In fall of 1939, most of the 1,000 Poles and Jews who had been jailed in the basement of the house at 20 Warszawska Street, had been murdered inside the building, or in nearby forests of Skrwilno and Rusinowo.

Rudki Most On the 22 October 1939, mass arrests occurred, gathering Poles of the so-called leadership class as well as farmers from nearby villages. The prisoners were systematically shot in Rudzki Most forest near Tuchola, on 24 October, 27 October, 30 October, 2 November, 6 November (unconfirmed), 10 and 11 November 1939. Shootings were carried out by members of the paramilitary Volksdeutscher Selbstschutz, led by officers of the SS.

After the war, six mass graves were discovered, containing 237 bodies.

Buskowo and Srebrnica A series of executions carried out by SS officers and Selbstschutz militias, in October 1939 in the forest of Buszkowo near Koronowo made about 150 victims.

The mass murder was led by chief of Koronowo's Selbstschutz, Joachim Otto, a landowner's son from Kotomierz. Wehrmacht soldiers, officers of the SD and security police placed arrested people in cells of the pre-war prison in Koronowo, located on the grounds of the 14th century Cistercian monastery. Historian Włodzimierz Jastrzębski estimated the number of people shot in Buszkowo at at least 114, based on the results of post-war exhumations carried out on April 14, 1948.

Furthermore, on 26 October 1939, Germans arrested 12 respected citizens of Koronowo, including mayor Maksymilian Talaśka, and several merchants and craftsmen: they were taken the same day to a nearby forest in Srebrnica and killed. In the autumn of 1944, in order to erase the traces of their crimes, Nazi forces dug up, transported and burned the bodies of Poles murdered in Srebrnica.

Mniszek

Near the towns of Mniszek and Grupa, a forest complex north-east of Świecie was the location of mass executions perpetrated by German Selbstschutz during the first months of the war (October 1939 – April 1940). It is estimated that during the years of German occupation, nearly 10,000 people were murdered there. The murdered were buried in common graves, which were dug by local villagers.

Among the victimes were representatives of the Polish elite, local members of the political powiats (Świecie, Bydgoszcz, Chełmno, Grudziądz, Starogard), patients of the psychiatric hospital in Świecie, Jews, prisoners of war (POW) from various countries and members of the resistance movement. In addition, among the fallen were 17 Roman Catholic priests from Świecie and the surrounding area.

From the spring of 1940, the pace of extermination decreased significantly, but the executions had been carried out until the last days of the German occupation.

In mid-1944, with the approach of the Red Army, German troops attempted to remove the traces of their crimes: they brought Soviet POWs to work on digging up and burning the bodies. The POWs had been murdered on the spot six weeks later.

Mniszek cemetery is the second largest cemetery of victims of Nazi genocide in Pomerania.

Barbarka

The Barbarka massacre was a series of mass executions carried out by SS officers and members of the paramilitary Selbstschutz in the autumn of 1939, in the Barbarka forest near Toruń.

Polish historians estimate that at least 600 people were murdered in Barbarka: they were prisoners of the internment camp set up by the Nazi in the casemates of Toruń Fortress (so called Fort VII).

Klamry Mass executions in the Rybieniec forest near Klamry lasted from 12 October to 11 November 1939. The site was located east of Chełmno and a short distance from a makeshift internment camp in Fort VIII, a former Prussian segment of the Chełmno Fortress.

The murders were carried out by the local Selbstschutz, possibly with the support of Einsatzgruppen units. It is estimated that between 2,000 and 2,500 people were murdered in Klamry.

Among the victims shot were Jews, teachers from the area (Bartlewo, Bieńkówka, Brzozowo, Czarże, Dorposz Szlachecki, Drzonowo, Unisław, Trzebcz Królewski, Różnowo, Pniewite, Watorowo, Lisewo, Malankowo, Mozgowina and Nowawieś Chełmińska), engineers, craftsmen, farmers as well as Catholic priests from Wielkie Czyste, Wabcz, Sarnowo and Chełmno.

In the second half of 1944, with the approach of the Red Army, the Germans began to erase the traces of their crimes. A group of Jewish prisoners were forced to dig up the graves and burn the bodies of the victims. They were immediately murdered once their work completed.

Male Czyste

Selbstschutzmen members chose an inactive sandpit located between the villages of Małe Czyste and Dorposz Szlachecki as the place of mass executions. Murders took place from September to November 1939: historian Maria Wardzyńska estimates the number of victims between 400 and 800.

The majority of the victims were prisoners of the temporary detention centre in Dorposz Szlachecki: Catholic priests, farmers, teachers, officials and members of resistance movements from Chełmno, Kijewo Królewskie, Starogród and Unisław.

A few Poles managed to escape from the place of execution, reporting about the Nazi's modus operandi.

In August 1944, with the Red Army approcahing, a special German unit quartered near the place of execution burned the bodies of the victims for two days and two nights. After the war, the execution site revealed ashes of the murdered, bone fragments, buttons, belt buckles, etc. A monument has been erected at the execution place to honor the victims.

Plutowo In October and November 1939, a series of executions took place nearby a forest wash situated along the road leading to Szymborno. Local Selbstschutz murdered there about 230 Poles held in a near camp: farmers, teachers and the headmaster of the school from Unisław.

Near the end of the conflict, traces of the mass killings were erased, by dugging up and burning the corpses in the village of Małe Czyste. In 1945, Polish authorities found back an overlooked grave, containing eighteen bodies. After the war, a monument was erected at the execution site to honor the victims.

Otorowo In a forest area near the village of Otorowo, between Solec Kujawski and Bydgoszcz, Germans shot several hundred people in multiple executions. These killings had been supervised by officers of the Gdańsk Einsatzkommando 16 (a special Einsatzgruppen of the German security police) and SiPo, between October and November 1939. The bodies of the victims, coming from Bydgoszcz and villages in the vicinity (Wudzyn, Otorowo, Osielsko, Stronno, Żołędowo) were buried in trenches dug out for the September Campaign.

There is no surviving evidence of the executions carried out in Otorowo, hence the exact number of Poles murdered there remains unknown. After the war, only 33 victims could have been identified.

Tryszczyn The mass murders in Tryszczyn began on 28 September 1939, and lasted until about mid-October. They were carried out near the village of Tryszczyn, about north of Bydgoszcz. Germans used the trenches stretching along the banks of the Brda river, dug in the local forests or fields by Polish soldiers from the 62nd Infantry Regiment before the start of WWII.

Three to four times a day, batches of 50-70 convicts were brought from Bydgoszcz by trucks to a place deep in the forest, from where they were walked to the trenches. They were then murdered by shots to the back of the head. Only one person managed to escape the execution alive: Dr. Jan Rzadkowolski, thanks to the help of his family and farmers from Tryszczyn, could leave to Warsaw, where he died during the occupation. The evidence indicates that the crime in Tryszczyn was committed primarily by members of the Selbstschutz.

Based on a survey conducted in 1945 by the District Commission for the Investigation of Nazi Crimes, some historians state that between 1400 and 1500 victims of Nazi terror had been buried in six mass graves on the Brda River. However, the graves also contained Polish soldiers killed during the September Campaign, prisoners murdered by the Bydgoszcz Gestapo, and 200 Soviet prisoners of war in German captivity.