Complex sentence: The first commissioner of the Warsaw Ghetto, who also supervised the initial Jewish relocation program, was "SA-Standartenführer" Waldemar Schön, an "attritionist" best known for orchestrating an "artificial famine" ("künstliche Hungersnot") in January 1941.
Split into simpler sentences: The first commissioner of the Warsaw Ghetto was "SA-Standartenführer" Waldemar Schön, who also supervised the initial Jewish relocation. He was an "attritionist" best known for orchestrating an "artificial famine" ("künstliche Hungersnot") in January 1941.