Dembowski was born in Strzyżów, a town some 154 kilometres east of Cracow, in the Rzeszów Land, in the family of Zygmunt Dembowski and his wife Marja, née Denkert. Through a special indult from the General of the Jesuits, he entered the Society at Stara Wieś on 23 November 1926 at the age of 14. At Stara Wieś he passed a two-year novitiate under the novice master Augustyn Dyla, a Jesuit professor of philosophy. He was subsequently educated at a Jesuit gimnazjum at Pińsk in Poland where he graduated in May 1932, subsequently pursuing higher studies at the Jesuit institute in Cracow and at Lyon, France. After his return to Poland in 1939 Dembowski worked as a translator for the religious publisher Wydawnictwo Apostolstwa Modlitwy of Cracow, the oldest Catholicpublishing house in Poland. He translated into Polish the text of Jean-Vincent Bainvel, a professor in the Institut catholique de Paris, entitled La Dévotion au Sacré-Coeur de Jésus : doctrine, histoire, which appeared in his translation in 1934 as Kult Serca Bożego: teorja i rozwój. He was also a co-editor of the monthly magazine , a serial publication which appeared in 40 languages. On 6 November 1939, just sixty-six days after the German invasion of Poland, the Gestapo carried out the so-called Sonderaktion Krakau, an operation in which virtually all of the professors of the Jagiellonian University of Cracow were arrested and imprisoned in the Montelupich as part of the larger plan of Third Reich to eliminate all Polish intelligentsia. Four days later, on 10 November 1939, Dembowski was arrested by the Gestapo together with 24 other Jesuits of the Jesuit College of Cracow eight of them employees of the publishing house Wydawnictwo Apostolstwa Modlitwy and likewise imprisoned in the Montelupich. Although the Jesuits were never informed of the reasons for their arrest, it was clear that they opposed the vision of the Germans and for that reason were treated as the enemies of the Reich. During his incarceration at the Montelupich Prison, Dembowski was appointed by the rector of his Jesuit College to perform the functions of the chaplain to his fellow-arrestee Jesuit confrères. After 43 days of detention at Montelupich, Dembowski was transferred on 23 December 1939, together with the lay Jesuit brother, Ludwik Rzeźnikowski, to another notorious Gestapo prison at Wiśnicz, which was in reality a German extermination camp in which prisoners were worked to death. Despite the exhausting conditions of imprisonment exacerbated further by his tall stature and delicate health, Dembowski managed secretly to continue his ministry to his confrères and other prisoners. On 20 June 1940, after six months at Wiśnicz, Dembowski was deported, together with the other Jesuit prisoners, to the Auschwitz concentration camp, then in the process of being formed, where on arrival he was assigned the inmate number 770. He was thus one of the first Auschwitz prisoners who were forced into the construction of the camp. Dembowski's stay at Auschwitz and his heroic demeanour as a witness to the Christian faith is mentioned by a fellow prisoner, Adam Kozłowiecki, the futurecardinal, in his Auschwitz memoirs. In Auschwitz Dembowski was impressed into a penal company, the so-called Strafkompanie,consisting of several prisoners whose gruelling tasks included pushing an enormous road roller with which they had to level the Appellplatz under the watchful eye of the infamous Auschwitz henchmanErnst Krankemann. On 10 December 1940 Dembowski together with the other surviving Jesuits was transferred to the Dachauconcentration camp where he received inmate number 22238. He spent at Dachau 20 months before being murdered in a gas chamber on 10 August 1942, one week after his 30th birthday, after having complained of diarrhoea at the camp's revier or infirmary. Kazimierz Dembowski is currently one of the 122 Polish martyrs of the Second World War who are included in the beatification process initiated in 1994, whose first beatification session was held in Warsaw in 2003. A person nominated for beatification receives within the Roman Catholic Church the title of "Servant of God" and then "Venerable", before being declared "Blessed", which is a prerequisite for sainthood conferred in a process known as canonization. Dembowski's name is incorporated in the bronze plaque that hangs on a courtyard wall outside the Finucane Jesuit Center at Rockhurst University in Kansas City commemorating 152 Jesuit victims of the Germans during the Second World War.
