• OUR LADY of CZĘSTOCHOWA: st Sigismund parish church, Słomczyn, Poland; source: own collectionOUR LADY of CZĘSTOCHOWA
    st Sigismund parish church, Słomczyn, Poland
    source: own collection

st Sigismund
Roman Catholic parish
05-507 Słomczyn
85 Wiślana str.
Konstancin deanery
Warsaw archdiocese

  • st SIGISMUND: st Sigismund parish church, Słomczyn, Poland; source: own collectionst SIGISMUND
    st Sigismund parish church, Słomczyn, Poland
    source: own collection
  • st SIGISMUND: XIX c., feretory, st Sigismund parish church, Słomczyn, Poland; source: own collectionst SIGISMUND
    XIX c., feretory
    st Sigismund parish church, Słomczyn, Poland
    source: own collection
  • st SIGISMUND: XIX c., feretory, st Sigismund parish church, Słomczyn, Poland; source: own collectionst SIGISMUND
    XIX c., feretory
    st Sigismund parish church, Słomczyn, Poland
    source: own collection
  • st SIGISMUND: XIX c., feretory, st Sigismund parish church, Słomczyn, Poland; source: own collectionst SIGISMUND
    XIX c., feretory
    st Sigismund parish church, Słomczyn, Poland
    source: own collection
  • st SIGISMUND: XIX c., feretory, st Sigismund parish church, Słomczyn, Poland; source: own collectionst SIGISMUND
    XIX c., feretory
    st Sigismund parish church, Słomczyn, Poland
    source: own collection

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Martyrology of the clergy — Poland

XX century (1914 – 1989)

personal data

review in:

  • DEMBCZYK Sylvain, source: tpk-koniecpol.strefa.pl, own collection; CLICK TO ZOOM AND DISPLAY INFODEMBCZYK Sylvain
    source: tpk-koniecpol.strefa.pl
    own collection




Sylvain (pl. Sylwan)

  • DEMBCZYK Sylvain - Commemorative plaque, St John the Baptist church, Włocławek, source: pomniki.wloclawek.pl, own collection; CLICK TO ZOOM AND DISPLAY INFODEMBCZYK Sylvain
    Commemorative plaque, St John the Baptist church, Włocławek
    source: pomniki.wloclawek.pl
    own collection


diocesan priest


Latin (Roman Catholic) Church
more on: en.wikipedia.org [access: 2014.09.21]

diocese / province

Włocławek diocese
more on: en.wikipedia.org [access: 2013.05.19]
Kielce diocese
more on: www.diecezja.kielce.pl [access: 2012.12.28]
Mogilev archdiocese
more on: en.wikipedia.org [access: 2013.06.23]

academic distinctions

Theology MA

honorary titles

Papal chamberlain
more on: en.wikipedia.org [access: 2014.11.22]
honorary canon (Wiślica collegiate)
more on: en.wikipedia.org [access: 2014.11.14], en.wikipedia.org [access: 2014.11.14]

date and place of birth


Dmenin (Radomsko county)

presbyter (holy orders)/


positions held

dean of Włocławek deanery and parish priest of St John’s parish in Włocławek (1933‑9), f. deputy dean of Włoszczowa deanery and parish priest of Koniecpol parish (1924‑33), f. teacher and gymnasium vicar in Częstochowa (1920‑3), Kalisz (1919‑20), f. professor of Włocławek Theological Seminary (1918‑9), f. vicar of St Catherine parish in Sankt Petersburg (1918), cathedral in Sankt Petersburg (1917‑8), f. schoolteacher in Polish school in Sankt Petersburg (1916‑8), pro‑synodal Curia Court judge, editor of „Polish Weekly”, f. publisher of „Koniecpol News” bi‑weekly

date and place of death


KL Dachau

cause of death

extermination: exhaustion and starvation

details of death

After German and Russian invasion of Poland in 09.1939 and start of the II World War arrested on 03.10.1939 by the Germans. Jailed in Warsaw Pawiak prison. Released on 15.10.1939. Arrested again on 07.11.1939 together with 9 professors and 22 students of theological seminary. Jailed in Włocławek prison. Due to illness released and moved to St Anthony hospital in Włocławek. In 04.1940 transferred to Ląd transit camp from where already on 03.04.1941 transported to Inowrocław prison where as everybody else was beaten by German guards. From there moved to Berlin prison where was incarcerated during Easter 13‑14.04.1941. Next on 25.04.1941 transported — via Halle, Weimer and Nürenburg — to KL Dachau concentration camp where perished.

alt. dates and places of death




others related in death


murder sites
camps (+ prisoner no)

KL Dachau (prisoner no: 24548): KL Dachau in German Bavaria, set up in 1933, became the main concentration camp for Catholic priests and religious during II World War: Germans imprisoned there approx. 3,000 priests, including 1,800 Poles. They were forced to slave at so‑called „Plantags”, doing manual field works, at constructions, including crematorium. In the barracks ruled hunger, freezing cold in the winter and suffocating heat during the summer. Prisoners suffered from bouts of illnesses, including tuberculosis. Many were victims of murderous „medical experiments” — in 11.1942 c. 20 were given phlegmon injections; in 07.1942 to 05.1944 c. 120 were used by for malaria experiments. More than 750 Polish clerics where murdered by the Germans, some brought to Schloss Hartheim euthanasia centre and murdered in gas chambers. At its peak KL Dachau concentration camps’ system had nearly 100 slave labour sub–camps located throughout southern Germany and Austria. There were c. 32,000 documented deaths at the camp, and thousands perished without a trace. C. 10,000 of the 30,000 inmates were found sick at the time of liberation, on 29.04.1945, by the USA troops… (more on: www.kz-gedenkstaette-dachau.de [access: 2013.08.10], en.wikipedia.org [access: 2016.05.30])

Berlin (Moabit): Prison in Berlin at Lehrter Straße, called Germ. Zellengefängnis (Eng. Cell prison), constructed in 1842‑9 by the order of Frederic William IV, King of Prussia. During II World War German army Wehrmacht remand prison, and next German political police Gestapo prison. Place of execution including by beheading. Place of death of many Poles. Shut down in 1957‑8. (more on: en.wikipedia.org [access: 2019.11.17])

Inowrocław: German penal institution and investigative prison. In 1939 hundreds of Poles from Inowrocław and vicinity were jailed there — as part of „Intelligenzaktion”, German program of physical extermination of Polish intelligentsia and leading classes. By 11.1939 in the prison and its immediate surroundings approx. 546 Poles had been executed, among them 56 victims shot on the night of 22‑23.10.1939. Also later the prison was a place of Polish martyrology. After commencement of Russian occupation in 1945 Commi‑Nazi prison for women, among others. (more on: www.inowroclawfakty.pl [access: 2013.05.19])

Ląd: In 1940‑41, in a formerly cistercian priory and monastery (today Salesian Institute) in Ląd on Warta river Germans set‑up a transit camp for Polish priests and religious, from Włocławek, Gniezno, Warszawa, Poznań, Płock and Częstochowa dioceses and religious and monks from a number of congregations. Approx. 152 religious (70 till 03.04.1941 and 82 in 6‑28.10.1941) were held there prior to being sent to KL Dachau concentration camp. (more on: pl.wikipedia.org [access: 2013.08.10], yadda.icm.edu.pl [access: 2016.03.14])

Włocławek: Police detention centre at Karnkowski str. in downtown Włocławek run by Germans. In 1939‑40 Germans held there hundreds of Poles, including dozens of Polish priests, that were subsequently transported to German concentration camps. (more on: www.sztetl.org.pl [access: 2017.01.21])

Pawiak: Investigative prison in Warsaw. Largest German prison in German‑led General Governorate. 100,000 prisoners went through it in the years 1939‑44, approx. 37,000 of which were murdered by the Germans in executions, during interrogations, in the cells or in the prison “hospital”. (more on: pl.wikipedia.org [access: 2013.08.10])

Intelligenzaktion: (Eng. „Action Intelligentsia”) — also Germ. Unternehmen „Tannenberg” (Eng. „Tannenberg operation”). Extermination program of Polish elites, mainly intelligentsia, executed by the Germans right from the start of the occupation in 09.1939 till around 05.1940, mainly on the lands directly incorporated into Germany but also in the so‑called General Governorate where it was called AB‑aktion. During this genocide Germans methodically murdered c. 50,000 teachers, priests, landowners, social and political activists and retired military. Further 50,000 were sent to concentration camps where most of them perished. (more on: pl.wikipedia.org [access: 2013.08.10], en.wikipedia.org [access: 2014.10.04])

Ribbentrop-Molotov: Genocidal Russian–German alliance pact between Russian leader Joseph Stalin and German leader Adolf Hitler signed on 23.08.1939 in Moscow by respective foreign ministers, Mr. Vyacheslav Molotov for Russia and Joachim von Ribbentrop for Germany. The pact sanctioned and was the direct cause of joint Russian and German invasion of Poland and the outbreak of the II World War in 09.1939. „The war was one of the greatest calamities and dramas of humanity in history, for two atheistic and anti–Christian ideologies — national and international socialism — rejected God and His fifth Decalogue commandment: Thou shall not kill!” (Abp Stanislaus Gądecki, 01.09.2019). The decisions taken were on 28.09.1939 slightly altered and made more precise when a treaty on „German–Russian boundaries and friendship” was agreed by the same murderous signatories. One of its findings was establishment of spheres of influence in Central and Eastern Europe and in consequence IV partition of Poland. In one of its secret annexes agreed, that: „the Signatories will not tolerate on its respective territories any Polish propaganda that affects the territory of the other Side. On their respective territories they will suppress all such propaganda and inform each other of the measures taken to accomplish it”. The agreements resulted in a series of meeting between two genocidal organization representing both sides — German Gestapo and Russian NKVD when coordination of efforts to exterminate Polish intelligentsia and Polish leading classes (in Germany called Intelligenzaktion, in Russia took the form of Katyń massacres) where discussed. Resulted in deaths of hundreds of thousands of Polish intelligentsia, including thousands of priests presented here, and tens of millions of ordinary people,. The results of this Russian–German pact lasted till 1989 and are still in evidence even today. (more on: en.wikipedia.org [access: 2015.09.30])


michaelstanislaus.salon24.pl [access: 2012.06.01], www.eduteka.pl [access: 2013.02.15], www.ipgs.us [access: 2012.11.23]
„Victims of German crime among Włocławek diocese clergy”, Fr Stanislau Librowski, „Włocławek Diocese Chronicle”, 07‑08.1947
original images:
tpk-koniecpol.strefa.pl [access: 2015.09.30], pomniki.wloclawek.pl [access: 2018.11.18]


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