Reacquiring Lost Citizenship in Germany

How did you lose German citizenship?

Germany has several routes back and they are not interchangeable. One is far easier but closes in 2031, and in many cases the citizenship was never lost.

I applied for another country's citizenship I formally renounced German citizenship Before April 1953, through marriage or legitimation Through Nazi persecution between 1933 and 1945 As a child, through a parent's naturalisation abroad I'm not sure