"The archives also contained the personal papers of almost 800 prominent German authors, politicians and composers, including Konrad Adenauer, the first post-war chancellor of Germany. The manuscripts and letters of Nobel Prize winner Heinrich Böll and Jacques Offenbach, a 19th century cellist and opera composer, were stored at the archive. Weimar Republic politician Wilhelm Marx and German-Jewish composer Ferdinand Hiller were among the other notables whose collections have been buried under tons of concrete. 'These are fragile papers, that are now ground to dust,' Illner told the daily."

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