The Reichskonkordat was signed by the Cardinal Secretary of State under Pope Pius XI and the Vice Chancellor under which leader?
Reichskonkordat:  It was signed on 20 July 1933 by Cardinal Secretary of State Eugenio Pacelli, who later became Pope Pius XII, on behalf of Pope Pius XI and Vice Chancellor Franz von Papen on behalf of President Paul von Hindenburg and the German government.
i don't know