Alexander Graf von Hachenburg German writer (1847-1940) (1847–1940) Parents Ludwig zu Sayn-Wittgenstein-Berleburg Princess Leonilla Bariatinskaya Children Gustav Alexander Prinz zu Sayn-Wittgenstein Stanislaus zu Sayn-Wittgenstein-Sayn Siblings Marie Prinzessin zu Sayn-Wittgenstein-Berleburg Theodor Friedrich Fürst zu Sayn-Wittgenstein-Berleburg Antoniette zu Sayn-Wittgenstein-Berleburg Peter zu Sayn-Wittgenstein Partners Marie Auguste Yvonne de Blacas d'Aulps