Josef Kramer (November 10, 1906 - December 13, 1945) was the Commandant of the Bergen-Belsen concentration camp. Dubbed "The Beast of Belsen" by camp inmates; he was one of the most notorious of Nazi war criminals, directly responsible for the deaths of many thousands of people. He was convicted of war crimes and hanged in Hameln prison after World War II. Wikipedia
The definitive Wikipedia entry for Josef Kramer. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Josef_Kramer