Siegfried Seidl

After the war, Seidl attempted to hide in Austria. However, he was arrested by local police and handed over to American occupation forces on 30 July 1945. Seidl was sent back to Austrian custody on 3 June 1946. Czechoslovakia requested Seidl's extradition. Austrian officials refused, explaining that many of Seidl's victims had been Austrian Jews. In October 1946, Seidl tried by the Volksgericht (Austrian People's Court) for 16 counts of murder related to the executions, high treason, crimes against humanity resulting in death committed as a concentration camp commandant, and crimes against dignity resulting in death committed as a concentration camp commandant. Seidl was acquitted of murder, but found guilty on all of the other counts. He was sentenced to death and ordered to forfeit all of his property, which was mandatory due to his position and the crimes he had been convicted of. After hearing the verdict, Seidl calmly bowed, but he turned pale and started trembling. His wife and mother petitioned the president for clemency, saying he had three children. However, the clemency petition was rejected. Seidl was hanged at 6:00 AM on 4 February 1947. As the noose was placed around his neck, Seidl told his hangman that he was not sorry for the Jews he had killed and that he had "nothing to regret." He was pronounced dead 7 minutes later.

In March 1944 Seidl met with the Wehrmacht in Budapest, where he joined the 5th Einsatzgruppe SS paramilitary death squad. As leader of the Debrecen outpost, Seidl was part of the Sondereinsatzkommando-Eichmann (SEK). The SEK organised the largest and quickest deportation of the Holocaust. From 15 May to 9 July 1944, in 56 days, the Germans deported 437,402 Jews from Hungary, according to their records. With the exception of 15,000 people, all were taken to the death camp Auschwitz-Birkenau, where most were murdered.

In July 1944, when the deportation of the Jews of Hungary was finished, Seidl was appointed as acting leader of the SS Special Deployment Command, Outpost Vienna. There he exercised control over the remaining Hungarian Jews in forced-labour camps, which had been built in Vienna and Lower Austria.

From November 1941 until 3 July 1943, he was the ghetto's Commandant. He was responsible for thousands of people being ill treated and murdered. In November 1942, Seidl was promoted to SS-Hauptsturmführer (Captain). During his time there, Eichmann issued Seidl an order to hang 16 Jews for trying to smuggle letter to the outside world. Seidl fulfilled the order. As commandant Seidl reported directly to Hans Günther, chief of the Zentralstelle für jüdische Auswanderung (Central office for Jewish emigration) in Prague. Günther in turn reported to Adolf Eichmann at the Reich Security Main Office (RSHA) IV B 4 in Berlin.

On orders of Eichmann, Seidl was on 3 July 1943 reassigned as Commandant of the Bergen-Belsen concentration camp. He was succeeded at Theresienstadt by SS-Obersturmführer Anton Burger.

In late 1939, Seidl was called into the police as a result of his SS membership. As of January 1940, he was attached to the SS-Reichssicherheitshauptamt (RSHA) – Department IVB4 under Adolf Eichmann's command – and posted to the SS lead section in Posen. On 30 October 1941, Seidl was charged by Adolf Eichmann with establishing the Theresienstadt ghetto and concentration camp, Czechoslovakia.

On 2 March 1939 Seidl married Elisabeth Stieber, a former teacher in a kindergarten. She was a member of the NSDAP (Nazi Party) and its NS-Frauenschaft (NSF: National Socialist Women's League, literally NS-Womanship), and supporting member of the SS.

From 1935 until 1938, Seidl studied history and German studies at the University of Vienna. He obtained his PhD in 1941. This title was taken away from him in 1947 after he was convicted as a war criminal.

On 15 October 1930 Seidl joined the Nazi Party (registered as member number 300,738). From September 1931 until May 1932, he was active in the SA. The same day that he left the SA, Seidl was assigned to the 11th SS-Standarte (SS-regiment) as Oberscharführer (equivalent to Staff Sergeant (US) or Sergeant (UK)) (member number 46,106).

Siegfried Seidl (24 August 1911 – 4 February 1947) was an Austrian career officer and World War II commandant of the Theresienstadt concentration camp located in the present-day Czech Republic. He also was commandant of the Bergen-Belsen, and later served as staff officer to Adolf Eichmann. After the war, in 1947, he was tried in Austria and convicted as a war criminal; sentenced to death, he was executed by hanging.