Complex sentence: She is the wife of Karl-Theodor zu Guttenberg, the Minister of Defence, and the great-great-granddaughter of Chancellor Otto von Bismarck and great-granddaughter of Foreign Secretary Herbert von Bismarck.
Split into simpler sentences: She is the wife of Karl-Theodor zu Guttenberg, the Minister of Defence. A member of the Bismarck family, she is the great-great-granddaughter of Chancellor Otto von Bismarck and great-granddaughter of Foreign Secretary Herbert von Bismarck.