The Sonnenstein Registry Office (Standesamt Sonnenstein) sent families of the victims a death certificate with falsified causes of death and a standard "letter of condolence". Men and women of all ages and even children were killed at Sonnenstein, including those from the Katharinenhof in Saxony's Großhennersdorf and from the Chemnitz-Altendorf State Institute. The patients killed at Sonnenstein came from the whole of Saxony, Thuringia, Silesia, East Prussia (e.g. from the Provincial Mental Sanatorium Kortau) and parts of Bavaria. Until 24 August 1941, when Adolf Hitler, probably for internal political reasons, issued the "Euthanasia Stop" order, a total of 13,720 mentally ill and intellectually disabled people were gassed under Action T4 at Pirna-Sonnenstein.
