More than 50 years after the end of the Third Reich, Jehovah's Witnesses, like Sinti and Roma, continue to be forgotten victims in the broader public’s consciousness. Only recently have historians and concentration camp memorials increasingly focused on this category of inmates who were marked and stigmatized in concentration camps with purple triangles. Through 22 articles, 19 authors employ the latest research in to summarize the multifaceted history of those prisoners in the Wewelsburg, Sachsenhausen and Moringen concentration camps. Comprehensively, this volume includes a lens on the persecution of the female members of Jehovah's Witnesses, who made up the largest group of inmates of the female concentration camps up until the beginning of the Second World War; contributions that for the first time deal with the hitherto largely unknown history of the persecution of Jehovah’s Witnesses specifically in the GDR; and, to round out this volume’s extensiveness, there also are around 120 documents and photos, previously mostly unseen.