Which concentration camp was Anne sent to?I'm really interested in her.

Bergen-Belsen is where Anne succumbed in 1945.  This camp does not have the name recognition that others do, like Auschwitz, because it was never actually recognized as a concentration camp.  It was meant to be a "holding" station and a transfer center, but as the populations continued to increase, it served as one nevertheless.  In the month that Anne is thought to have died, March, 1945, approximately 18,000 others died as well.  Many were gravely ill with typhoid or tuberculosis, diseases often common among large populations who share close quarters.  Thousands of others starved to death.