[7] In Autumn of 1944, König succeeded Horst Fischer as supervisor of Auschwitz III.
König passed through the Mittelbau camp when Auschwitz was evacuated and resumed his work at Neuengamme.
[3] Under the pseudonym Ernest Peltz, König escaped to Colnrade, where he received a permit to practice medicine as a doctor from the British authority.
When rumors about Peltz's authenticity began circulating and an investigation was opened, he closed his practice in 1962 and fled the country.
König studied with Jewish doctors, whom he treated cordially, but also performed dangerous and invasive procedures on the basis of his own interest.