TR.4 - Documentation from the Erich von Manstein Trial, 1949 FieldMarshall Erich von Manstein was one of the senior German Army officers who served in various positions in the Soviet Union. War crimes and mass murders took place in the areas under the command of von Manstein, and he was therefore brought to trial after the war. The Record Group contains protocols of the trial, which was held in Hamburg, 23 August-19 December 1949. A protocol of the court session for each of day of the trial can be found in each of the 62 files in the Record Group.