Karoline of Wartensleben

Countess Karoline Friederike Cäcilie Klothilde von Wartensleben was a German noblewoman. She was a paternal great-great-grandmother of King Willem-Alexander of the Netherlands. She was a daughter of the 1841 marriage of Count Leopold von Wartensleben (1818-1846) with Mathilde Halbach (1822-1844), daughter of Arnold Halbach, an American industrialist whose family fortune became important in German munitions, but the question of her hereditary rank became an important issue in a 1905 dispute over succession to the throne of the principality of Lippe.