Roman Catholic parish
85 Wiślana str.
Martyrology of the clergy — Poland
XX century (1914 – 1989)
Casimir John (pl. Kazimierz Jan)
Latin (Roman Catholic) Church
more on: en.wikipedia.org [access: 2014.09.21]
Society of St Francis de Sales (Salesian Society, - SDB)
more on: en.wikipedia.org [access: 2013.05.19]
diocese / province
st Stanislaus Kostka Warsaw Inspectorate SDB
date and place of death
Warsaw city pow., Masovia voiv.
details of death
After German and Russian invasion of Poland in 09.1939 and start of the II World War arrested by the Germans on 07.02.1944 in Warsaw, in Fr Siemiec Orphans' House together with 17 priests and 14 co‑religious. Held in Pawiak prison. Released on 28.02(03).1944. Perished during Warsaw Uprising, under rubble of bombarded by Germans Silesians’ Institute at Lipowa str.
cause of death
date and place of birth
presbyter (holy orders)/
friar at Warsaw monastery — director of the printing school run in Congregation's house, novitiate in Radna monastery 1909‑10
camps (+ prisoner no)
Warsaw Uprising: Lasted from 01.08.1944 till 03.10.1944. Was an attempt to liberate Polish capital from occupying Germans by the Polish Clandestine State — a unique in the history of the world political structure on the territories occupied by the Germans, effectively governing clandestinely in Poland — and by fighting on its behalf underground military units, mainly of Home Army (former Armed Struggle Association ZWZ) and National Armed Forced (NSZ). At the same time Russians stopped on purpose the offensive on all front, halted on the other bank of Vistula river and watched calmly the annihilation of the city, refusing even the mid–landing rights to the Allied planes carrying weapons and supplies to the insurgents from Italy. During the Uprising Germans murdered approx. 200,000 Poles, mainly civilians. Approx. 200 priests and nuns died in fighting or were murdered by the Germans, many in mass executions. (more on: en.wikipedia.org [access: 2013.08.17])
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])
07.02.1944 arrests: In apparent in retaliation for the successful attempt on the head of the Warsaw Gestapo and the SS gen. Kutschera (01.02.1944) German political police (Gestapo) arrested many priests and religious in Warsaw, Cracow, Lublin and Radom, including 17 priests, 14 religious and many pupils and staff members of the Fr Siemiec orphans' house run by Salesian Fathers in Warsaw and 14 Vincentian (Lazarists) priests, 5 Vincentian religious and 3 lay people ministering in the Holy Cross church in Warsaw. They were taken to infamous Pawiak prison in Warsaw and next some of them were transported to Groß‑Rosen concentration camp.
General Governorate: A separate administrative territorial region set up by the Germans in 1939 after defeat of Poland, which included German‑occupied part of Polish territory that was not directly incorporate into German state. It was run by the Germans till 1945 and final Russian offensive, and was a part of so–called Big Germany — Grossdeutschland. Till 31.07.1940 formally known as Germ. Generalgouvernement für die besetzten polnischen Gebiete (Eng. General Governorate for occupied Polish territories) — later as simply niem. Generalgouvernement (Eng. General Governorate). From 07.1941 expanded to include district Galicia. (more on: en.wikipedia.org [access: 2013.12.04])
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])
bws.sdb.org.pl [access: 2019.05.30]
If you have an email client on your communicator/computer — such as Mozilla Thunderbird, Windows Mail or Microsoft Outlook, described at Wikipedia, among others — try the link below, please:
If however you do not run such a client or the above link is not active please send an email to the Custodian/Administrator using your account — in your customary email/correspondence engine — at the following address:
giving the following as the subject:
MARTYROLOGY: OLSZEWSKI Casimir John
To return to the biography press below: