Erich Ziegler
... that the Socialist Unity Party of West Berlin leader Erich Ziegler had been imprisoned during World War II for his role in the Heinz Kapelle resistance group?
... that the <a href="./Socialist_Unity_Party_of_West_Berlin" id="mwA9U" rel="mw:WikiLink" title="Socialist Unity Party of West Berlin">Socialist Unity Party of West Berlin</a> leader <b id="mwA9Y"><a href="./Erich_Ziegler" id="mwA9c" rel="mw:WikiLink" title="Erich Ziegler">Erich Ziegler</a></b> had been imprisoned during <a href="./World_War_II" id="mwA9g" rel="mw:WikiLink" title="World War II">World War II</a> for his role in the <a href="./Heinz_Kapelle" id="mwA9k" rel="mw:WikiLink" title="Heinz Kapelle">Heinz Kapelle</a> resistance group?