damage of the graves. Since it lay close to the Berlin Wall, in the 1960s over a third of the cemetery was destroyed to make way for watch towers, troop barracks, roads and parking lots. Some of the graves were damaged by gunfire from soldiers guarding the wall. The degradation of the cemetery continued in the 1970s, when soldiers stationed nearby began to use abandoned or damaged gravestones to build shelters in case of bad weather. It was probably only the fact that the cemetery contained the graves of German freedom fighters like Scharnhorst, regarded by the East German National People's Army as its forerunners, that prevented its total destruction. After German reunification in 1990 the cemetery came under the monument protection scheme and restoration work began. There is now a memorial to Berliners killed trying to cross the Berlin Wall in the cemetery. The cemetery also contains an unmarked mass grave of Berliners killed in allied Air Raids. In December 2019 the unmarked grave of Reinhard Heydrich in the cemetery was opened, with police launching an investigation after a cemetery employee made the discovery. Stating that no remains had been removed, the police believe that whoever violated Heydrich's grave is thought to have had inside knowledge of its location. Notable individuals In chronological order (a fuller alpha-list is at :Category:Burials at the Invalids' Cemetery): 1757 - Hans Karl von Winterfeldt 1813 - Gerhard Johann David von Scharnhorst 1824 - Bogislav Friedrich Emanuel Graf Tauentzien von Wittenberg 1837 - Job von Witzleben 1841 - Gustav von Rauch 1843 (d.1814) - Karl Friedrich Friesen 1848 - Karl Friedrich von dem Knesebeck 1848 - Hermann von Boyen 1850 - Friedrich Wilhelm von Rauch 1856 - August Hiller von Gaertringen 1878 - Therese Elssler (later Therese von Barnim) 1881 - Karl Julius von Groß (later von Groß von Schwarzhoff) 1892 - Fedor von Rauch 1899 - Friedrich Wilhelm von Rauch 1890 - Gustav Waldemar von Rauch 1900 - Alfred Bonaventura von Rauch 1901 - Albert von Rauch 1909 - Friedrich von Holstein 1910 - Julius von Verdy du Vernois 1913 - Alfred von Schlieffen 1914 - Karl von Schönberg 1916 - Helmuth Johannes Ludwig von Moltke 1917 - Moritz von Bissing 1917 - Maximilian von Prittwitz und Gaffron 1918 - Hans-Joachim Buddecke 1918 - Hermann von Eichhorn 1918 - Olivier Freiherr von Beaulieu-Marconnay 1919 - Robert von Klüber 1920 - Rudolf Berthold 1921