Hertz was born in Hamburg, the son of Auguste (née Arning) and a lawyer, Gustav Theodor Hertz (1858–1904),[1] Heinrich Rudolf Hertz' brother.
Ni Hertz ket naiyanak idi idiay Hamburg, ti anak a lalaki ni Auguste (née Arning) ken maysa nga abogado, a ni Gustav Theodor Hertz (1858–1904),[1] Ti kabsat a lalaki ni Heinrich Rudolf Hertz.