Although she had been a members of the Social Democratic Party for more than two decades, sources are silent on her political activity till this point, suggesting that within the family public politics had been left to her father . During the twelve Nazi years the family were monitored by the authorities, regularly summoned for interrogation sessions and their home subject to periodic raids. On 20 July 1944 an assassination attempt was made against Adolf Hitler. The dictator survived, but his regime had already prepared a list of several thousand names, to be used in the event of an escalation in political tension on the home front, and the name of Hermann Albertz was listed. In the context of the wave of arrests known as "Aktion Gitter", in August 1944 Hermann Albertz was arrested and taken to Sachsenhausen concentration camp. Two months later he was transferred to Bergen-Belsen concentration camp. Nothing is known of his subsequent fate, but sources assume he died or was murdered by the Nazis in the closing months of the war.