![HimmlersApptBook on Twitter: "Given the major plans for construction, a special concentration was built to supply slave labor. This became known as KZ Niederhagen. Around 3,900 prisoners were kept there. 1,285 deaths HimmlersApptBook on Twitter: "Given the major plans for construction, a special concentration was built to supply slave labor. This became known as KZ Niederhagen. Around 3,900 prisoners were kept there. 1,285 deaths](https://pbs.twimg.com/media/D80JIjVV4AAGlNG.png)
HimmlersApptBook on Twitter: "Given the major plans for construction, a special concentration was built to supply slave labor. This became known as KZ Niederhagen. Around 3,900 prisoners were kept there. 1,285 deaths
![Un memorial Castillo Wewelsburg, Büren, Westfalia, Alemania a aquellos que murieron en la cárcel Niederhagen y campamento de trabajo por la N Fotografía de stock - Alamy Un memorial Castillo Wewelsburg, Büren, Westfalia, Alemania a aquellos que murieron en la cárcel Niederhagen y campamento de trabajo por la N Fotografía de stock - Alamy](https://c8.alamy.com/compes/h7003p/un-memorial-castillo-wewelsburg-buren-westfalia-alemania-a-aquellos-que-murieron-en-la-carcel-niederhagen-y-campamento-de-trabajo-por-la-n-h7003p.jpg)
Un memorial Castillo Wewelsburg, Büren, Westfalia, Alemania a aquellos que murieron en la cárcel Niederhagen y campamento de trabajo por la N Fotografía de stock - Alamy
![Greater London SE Sector ACF on Twitter: "Senior cadets visiting the Niederhagen concentration camp memorial during annual camp in Germany. #WeWillRemember https://t.co/yReZHLkfx2" / Twitter Greater London SE Sector ACF on Twitter: "Senior cadets visiting the Niederhagen concentration camp memorial during annual camp in Germany. #WeWillRemember https://t.co/yReZHLkfx2" / Twitter](https://pbs.twimg.com/media/CodQS_QW8AAkrjk.jpg)