The murders of Karl Liebknecht and Rosa Luxemburg enter the text through a note on the workers’ movement song “Auf, auf zum Kampf.” The note says that the text quoted in the book was written by Berthold Brecht in 1919 in their honor, making the song a concise reference to the killings and their political memory rather than a narrated scene of violence.

Reference Through Song

The event is identified by the note’s explanation of the song: it was written in 1919 to honor Karl Liebknecht and Rosa Luxemburg. This is the only supplied account of the murders themselves. The evidence does not describe their circumstances, identify perpetrators, or give a fuller chronology, so the event remains a historical reference rather than a developed episode in the narrative.

Political Remembrance

The song’s connection to the murdered figures places their deaths within the book’s references to the workers’ movement. Its commemorative purpose is explicit, but the text does not supply further details about the song’s use or reception. The brief note thus preserves a specific link between political song and remembrance without expanding it into a separate account of the killings.