Ludwig (15 July 1843 – 28 February 1876); married morganatically to Amalie Lilienthal (Berlin 1847-1927), sister of Pauline; no issue Alexander (14 July 1847 - 12 August 1940); married firstly to Marie Auguste Yvonne de Blacas d'Aulps, daughter of Louis, Duke of Blacas; had issue who is today the current Head of the family; married secondly to Helene Królikowska (1854-1931). His issue by his second marriage surnamed "von Hachenburg" References External links History of the House of Sayn https://www.genealogieonline.nl/west-europese-adel/I374314.php Russian nobility Members of the Prussian House of Lords 1799 births 1866 deaths Ludwig zu Sayn-Wittgenstein-Berleburg People from Kaunas