23 December 1935The boxer Johann Wilhelm ‘Rukeli’ Trollmann is forcibly sterilised in the ‘Rummelsburg labour and detention centre’ in Germany.
1942
4 September 1942On 4 or 5 September, the Sinto Johann Wilhelm ‘Rukeli’ Trollmann, German light heavyweight boxing champion in 1933, is sent to Neuengamme concentration camp in Germany, where his date of death is registered as 9 February 1943.
2003
17 December 2003The Bund Deutscher Berufsboxer (German Professional Boxing Association), Germany, adds the boxer Johann Wilhelm ‘Rukeli’ Trollmann to the list of champions, thereby cancelling the revocation of his title in 1933.
2010
9 June 2010A temporary memorial to Johann Wilhelm ‘Rukeli’ Trollmann in the form of a boxing ring is opened in Berlin, Germany, and is subsequently shown in other cities.
