Natalie Liebknecht German translator and second wife of SPD co-founder Wilhelm Liebknecht (1835–1909) (1839–1909) Parents Caroline Theodore Louise Reh Jacob Ludwig Theodor Reh Children Karl Liebknecht Theodor Liebknecht Otto Liebknecht Siblings Heinrich Reh Ludwig Karl Valentin Friedrich Theodor Reh Friedrich Caliga-Reh Partners Wilhelm Liebknecht