Karl Andreas Nothmann was born in Berlin on 11 November 1926 as the first child of Gertrud and Friedrich Fritz Nothmann, a President of the Court of Appeal.
He, his parents and his brother Georg Albrecht (*30 January 1932) lived at Moltkestraße 10 (now Hugo-Vogel-Straße 16).
In March 1933, Friedrich Nothmann was mobbed and beaten by Nazis in a street near Kleist Park. On 13 July 1933, like so many others, he was dismissed as a judge by the Nazis.
Friedrich Nothmann emigrated to Holland in 1939; Gertrud Nothmann, his two sons and Gertrud's mother followed him in 1939. Gertrud's mother died in exile in 1941.
After the invasion of the Wehrmacht, the family was arrested at the beginning of May 1943 and taken via the Vught concentration camp to the Westerbork collection camp.
On 4 September 1943, they were deported to Theresienstadt and on 16 October 1944 to the Auschwitz concentration camp, where they were all murdered.
Only one daughter from Fritz Nothmann's first marriage, Hildegard, was able to escape to England.