Simplify the following text for a Grade 6 native English-speaking person.
Original: The Wannsee Conference was a meeting of senior officials of the Nazi German regime , held in the Berlin suburb of Wannsee on 20 January 1942 .
Simplified: The Wannsee Conference was a meeting of senior members of the Nazi German government . It was held in the Berlin suburb of Wannsee on 20 January 1942 .