• 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

Roman Catholic
St Sigismund parish
05-507 Słomczyn
85 Wiślana Str.
Konstancin deanery
Warsaw archdiocese, Poland

  • 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)

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Mieczyslav (pl. Mieczysław)


religious cleric


Latin (Roman Catholic) Churchmore on
[access: 2014.09.21]


Congregation of the Holy Family Missionaries (Missionaries of the Holy Family - MSF)more on
[access: 2014.09.21]

diocese / province

MSF Polish Province

date and place of death


KL Sachsenhausenconcentration camp
today: Sachsenhausen–Oranienburg, Oberhavel dist., Brandenburg, Germany

more on
[access: 2018.11.18

alt. dates and places of death


details of death

After German and Russian invasion of Poland in 09.1939 and start of the II World War, after seizure of all Congregation's houses by the Germans and dispersion of friars prob. returned home to Inowrocław where ministered at St Nicholas parish.

Arrested on 02.11.1939 by the Germans.

Jailed in Świecie prison and on 08.09.1939 taken to Górna Grupa transit camp.

Next on 05.02.1940 transported to Neufahrwasser transit camp and from there on 28.02.1940 taken to KL Stutthof concentration camp.

Finally on 10.04.1940 transported to KL Sachsenhausen concentration camp where he was butchered with a stick by German camp's kapo, Bertold.

cause of death

extermination: exhaustion and starvation



date and place of birth


Szymborzetoday: part of Inowrocław, Inowrocław urban gm., Inowrocław pow., Kuyavia–Pomerania voiv., Poland
more on
[access: 2021.07.18

religious vows

15.08.1933 (last)

presbyter (holy orders)/

03.07.1938 (Bąblintoday: Oborniki gm., Oborniki pow., Greater Poland voiv., Poland
more on
[access: 2021.12.18

positions held

minister at St Nicholas parish in Inowrocław (1939), friar of one of Congregation's houses, f. theology student at Theology Studium in Bąblin (till 1938)

others related in death

ADAMCZYKClick to display biography Stanislaus, BRZĄKAŁAClick to display biography Victor, BURCZYKClick to display biography Felix, BYTOFClick to display biography Peter, CHARSZEWSKIClick to display biography Ignatius, CHYLARECKIClick to display biography Stanislaus, CIEMNIAKClick to display biography Louis, CYBULSKIClick to display biography Stanislaus, CZAKIClick to display biography Saturnin, CZAPIEWSKIClick to display biography Joseph Leonard, DEMSKIClick to display biography Vladislav, DOERINGClick to display biography Alexander, FIGATClick to display biography Henry, GOŃCZClick to display biography Bernard, GORALClick to display biography Vladislav, GRZEBIELEWSKIClick to display biography Joseph, GUZClick to display biography Joseph Adalbert (Fr Innocent), HEVELKEClick to display biography John, HINZClick to display biography Francis, HINZClick to display biography Thaddeus, JARZĘBSKIClick to display biography Stanislaus, JORDANClick to display biography Boleslaus, KALINOWSKIClick to display biography Theodore, KARAMUCKIClick to display biography Edmund Vladislav, KARCZYŃSKIClick to display biography Cyril Methodius, KAŹMIERCZAKClick to display biography Bronislaus, KLEINClick to display biography John, KOMPFClick to display biography January, KONKOLEWSKIClick to display biography Joachim, KOWNACKIClick to display biography Bronislaus, KOZUBEKClick to display biography Roman, KRAUZEClick to display biography Edmund, KRUPIŃSKIClick to display biography Louis, KUBIAKClick to display biography John (Bro. Norbert Mary), KUBICKIClick to display biography Steven, KUBISTAClick to display biography Stanislaus, KUPILASClick to display biography Francis, LAPISClick to display biography Casimir, LENARTClick to display biography John, LICZNERSKIClick to display biography Constantine, ŁOSIŃSKIClick to display biography Bernard Anthony, MACIĄTEKClick to display biography Stanislaus Peter, MARCHLEWSKIClick to display biography Leonard, MATUSZEWSKIClick to display biography Francis, MĄKOWSKIClick to display biography John, MĘŻNICKIClick to display biography Joseph, MICHNOWSKIClick to display biography Marian John, MITRĘGAClick to display biography Francis, MORKOWSKIClick to display biography Edmund, MOŚCICKIClick to display biography Joseph, NAGÓRSKIClick to display biography Paul Adalbert, NITSCHMANNClick to display biography Adam Robert, NOWAŃSKIClick to display biography Anthony, NOWICKIClick to display biography Alexander, OCHOŃSKIClick to display biography Charles (Fr Chris), OKOŁO–KUŁAKClick to display biography Anthony, PALUCHOWSKIClick to display biography Boleslaus, PETRYKOWSKIClick to display biography Steven, PIASZCZYŃSKIClick to display biography Michael, PODLASZEWSKIClick to display biography Francis, POMIANOWSKIClick to display biography Vladislav, RADTKEClick to display biography Steven Boleslaus, SĄSAŁAClick to display biography Theodore, SKOWRONClick to display biography Casimir, SOCHACZEWSKIClick to display biography Bronislaus Peter, SWINARSKI–PORAJClick to display biography Nicholas, SYNOWIECClick to display biography Boleslaus, SZUKALSKIClick to display biography John, SZYMAŃSKIClick to display biography Bruno, ŚLEDZIŃSKIClick to display biography Joseph, TUSZYŃSKIClick to display biography Joseph, TYMIŃSKIClick to display biography Anthony, WAWRZYNOWICZClick to display biography John, WĄSOWICZClick to display biography Sigismund, WIERZBICKIClick to display biography Sigismund Lawrence, WIERZCHOWSKIClick to display biography Fabian Sebastian, WILLIMSKYClick to display biography Albert, WŁODARCZYKClick to display biography Ignatius, WOHLFEILClick to display biography Robert, WRÓBLEWSKIClick to display biography Bronislaus, ZAWISZAClick to display biography Valentine, ZIELIŃSKIClick to display biography Paul, ZIEMSKIClick to display biography Alexander, ZIENKOWSKIClick to display biography Vaclav, ŻUCHOWSKIClick to display biography Vaclav

murder sites
camps (+ prisoner no)

KL Sachsenhausen (prisoner no: 21123Click to display biography): In KL Sachsenhausen concentration camp, set up in the former Olympic village in 07.1936, hundreds of Polish priests were held in 1940, before being transported to KL Dachau. Some of them perished in KL Sachsenhausen. Murderous medical experiments on prisoners were carried out in the camp. In 1942‑4 c. 140 prisoners slaved at manufacturing false British pounds, passports, visas, stamps and other documents. Other prisoners also had to do slave work, for Heinkel aircraft manufacturer, AEG and Siemens among others. On average c. 50,000 prisoners were held at any time. Altogether more than 200,000 inmates were in jailed in KL Sachsenhausen and its branched, out of which tens of thousands perished. Prior to Russian arrival mass evacuation was ordered by the Germans and c. 80,000 prisoners were marched west in so‑called „death marches” to other camps, i.e. KL Mauthausen–Gusen and KL Bergen–Belsen. The camp got liberated on 22.04.1945. After end of armed hostilities Germans set up there secret camp for German prisoners and „suspicious” Russian soldiers. (more on: en.wikipedia.orgClick to attempt to display webpageaccess: 2018.11.18)

KL Stutthof: In KL Stutthof (then in Eastern Prussian belonging to Germany, today: Sztutowo village) concentration camp, that Germans started to build on 02.09.1939, a day after German invasion of Poland and start of the II World War, Germans held c. 100‑127 thousands prisoners from 28 countries, including 47 thousands women and children. C. 65,000 victims were murdered and exterminated. In the period of 25.01–27.04.1945 in the face of approaching Russian army Germans evacuated the camp. When on 09.05.1945 Russians soldiers entered the camp only 100 prisoners were still there. In an initial period (1939‑40) Polish Catholic priests from Pomerania were held captive there before being transported to KL Dachau concentration camp. Some of them were murdered in KL Stutthof or vicinity (for instance in Stegna forest). Also later some Catholic priests were held in KL Stutthof. (more on: en.wikipedia.orgClick to attempt to display webpageaccess: 2013.07.06)

Neufahrwasser: Neufahrwasser (Gdańsk — Nowy Port) was a transit camp organised by the Germans in 1939 for Polish prisoners, chiefly as a part of „Intelligenzaktion” — extermination of Polish intelligentsia in Pomerania. Z Neufahrwasser prisoners were being sent to KL Stutthof concentration camp or directly to execution sites. The camp was closed in 04.1940. (more on: ofiaromwojny.republika.plClick to attempt to display webpageaccess: 2013.12.04)

Górna Grupa: From 10.1939 till approx. 04.1940 in Górna Grupa in Divine Word Missionaries (SVD) congregation house Germans organised — as part of „Intelligenzaktion”, extermination of Polish intelligentsia in Pomerania — a transit camp for Poles, including 95 priests, from Świecie, Bydgoszcz, Chełmno, Grudziądz and Starogard Gdański counties. Approx. of them perished, including 17 that were subsequently executed in Mnichek‑Grupa. In the same place in 1945 Russians set up a concentration camp for Germans, among whom two priests perished. (more on: www.kpbc.ukw.edu.plClick to attempt to display webpageaccess: 2013.12.27)

Świecie: Detention centre run by Germans. Most of the prisoners in 1939 Germans took to Mniszek‑Grupa and executed. (more on: pl.wikipedia.orgClick to attempt to display webpageaccess: 2021.12.19)

Inowrocław: Internment camp (Germ. Interniertenlager Thalerhof) for Rusyns and Lemkovs for Galicia and Bukovina, accused of „ Moscow sympathies”, set up by Austro–Hungarian Empire in war with Russian Empire, built n. Graz in Austria (on the lands Graz airport today is located on), and operational during I World War, from 04.09.1914 to c. 10.05.1917. Altogether 14,000 – 20,000, including more than 350 priest of Greek Catholic Church — prisoner were held captive. Prisoners were subjected to very harsh, inhumane conditions. During first year there were no barracks and internees had to sleep on the ground. Typhus and cholera outbreaks were noted. Austrians recorded 1.757 death cases. Other sources claim 3,000. Executions were also carried out there. (more on: www.inowroclawfakty.plClick to attempt to display webpageaccess: 2013.05.19)

Intelligenzaktion: (Eng. „Action Intelligentsia”) — 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 the first phase right after start of German occupation of Poland implemented as Germ. Unternehmen „Tannenberg” (Eng. „Tannenberg operation”) — plan based on proscription lists of Poles worked out by (Germ. Sonderfahndungsbuch Polen), regarded by Germans as specially dangerous to the German Reich. List contained names of c. 61,000 Poles. Altogether 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: en.wikipedia.orgClick to attempt to display webpageaccess: 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. In a political sense, the pact was an attempt to restore the status quo ante before 1914, with one exception, namely the „commercial” exchange of the so–called „Kingdom of Poland”, which in 1914 was part of the Russian Empire, fore Eastern Galicia (today's western Ukraine), in 1914 belonging to the Austro–Hungarian Empire. Galicia, including Lviv, was to be taken over by the Russians, the „Kingdom of Poland” — under the name of the General Governorate — Germany. The resultant „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 — backed up by the betrayal of the formal allies of Poland, France and Germany, which on 12.09.1939, at a joint conference in Abbeville, decided not to provide aid to attacked Poland and not to take military action against Germany (a clear breach of treaty obligations with Poland) — 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.orgClick to attempt to display webpageaccess: 2015.09.30)


www.msf.opoka.org.plClick to attempt to display webpageaccess: 2012.12.28, polacywberlinie.plClick to attempt to display webpageaccess: 2013.05.19


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