Educational purpose only. This post documents historical events related to World War II and condemns the Nazi regime, war crimes, and all totalitarian ideologies. We do not glorify violence or hate.
The Trial and Execution of Josef Riegler: The SS Guard at Mauthausen, 1947
Josef Riegler was an Austrian SS guard whose name became associated with brutality at the Mauthausen-Gusen concentration camp complex, one of the deadliest Nazi camp systems. Born on July 5, 1922, in Linz, Riegler grew up during the rise of Nazism and joined the SS shortly after Austria’s annexation into Germany in 1938, pledging loyalty to Adolf Hitler’s regime.
After military service during the early years of World War II — including deployments in Poland, Norway, and the Eastern Front — Riegler was transferred to Mauthausen concentration camp in February 1942. There, he held positions as Blockführer and later Rapportführer, roles that placed him in direct authority over prisoners and other guards.
This documentary examines the life and crimes of Josef Riegler — from his early service to his trial and conviction for crimes against humanity at Mauthausen.
1. Early Life and SS Service
Josef Riegler was born on July 5, 1922, in Linz, Austria. He joined the SS shortly after the Anschluss in 1938, beginning a career that would take him to one of the most notorious concentration camps of the Nazi regime.
Riegler served in military deployments in Poland, Norway, and the Eastern Front before his arrival at Mauthausen in February 1942. His conduct at Mauthausen became documented in post-war testimonies from survivors.
2. Crimes at Mauthausen
Mauthausen was classified as a Category III camp, designed for the destruction of prisoners through forced labor, starvation, and terror rather than imprisonment. Riegler’s actions at the camp were documented in survivor testimonies.
Witness accounts described Riegler’s involvement in killings and mistreatment of prisoners. Among those who suffered were Spanish Republicans who had fled Franco’s regime and were later handed over to the SS.
In February 1945, Riegler participated in the so-called “Mühlviertel Hare Hunt,” a manhunt following the escape of Soviet POWs from the Gusen subcamp. SS units, local civilians, and Nazi organizations pursued the escapees; nearly all were killed. Riegler later spoke about his participation in these events.
3. The Dachau-Mauthausen Trial
After Mauthausen was liberated by American forces in May 1945, Riegler was captured and stood trial during the Dachau-Mauthausen-Gusen proceedings. The trial was one of the major war crimes trials held by the U.S. military authorities.
Evidence presented against Riegler was substantial. Survivors testified to his role in the camp. Riegler admitted to preparing prisoners for executions and to his involvement in killings. He was found guilty of war crimes and crimes against humanity.
4. The Verdict and Execution
Josef Riegler was sentenced to death. On May 27, 1947, his death sentence was carried out at Landsberg Prison.
His execution marked one of many instances of post-war justice aimed at addressing the atrocities committed in the Nazi camp system. However, Riegler was only one of many who had served at Mauthausen — and numerous others escaped trial or received light sentences.
5. A Historical Lesson
The story of Josef Riegler is a reminder that the Nazi system of terror relied not only on high-ranking officials but also on ordinary individuals who carried out the daily work of oppression. His actions demonstrate how the regime encouraged and enabled brutality among its personnel.
His trial and execution serve as a testament to the importance of justice in the aftermath of genocide.
Primary Sources:
Dachau-Mauthausen-Gusen trial records (1946-1947)
Witness testimonies from Mauthausen survivors
Historical records of Josef Riegler’s service at Mauthausen
Post-war trial documentation
Historical studies on the Mauthausen camp system