Count of Merenberg (German: Graf von Merenberg) is the title bestowed in 1868 by the reigning Prince of Waldeck and Pyrmont, George Victor, upon the morganatic wife and male-line descendants of Prince Nikolaus Wilhelm of Nassau (1832-1905), who married Natalia Alexandrovna Pushkina (1836-1913), former wife of Russian General Mikhail Leontievich von Dubelt.
Nikolaus was a son of William, Duke of Nassau and his second wife, Princess Pauline of Württemberg. He was also a younger half-brother of Adolphe, who was deposed as reigning Duke of Nassau in 1866, but became Grand Duke of Luxembourg in 1890. Natalia was a daughter of Alexander Pushkin, the renowned Russian writer who ranked, however, only as a dvoryanin; an untitled member of the lower nobility. Therefore, Natalia was created Countess von Merenberg, a title without territory, as she was not legally permitted to share her husband's princely title or rank, even though his family had ceased to be hereditary rulers when the kingdom of Prussia annexed Nassau.
Through Pushkin, Natalia descends from Peter the Great's African protégé, Abram Petrovich Gannibal, as well as from the Cossack leader Prince Petro Doroshenko.
Their surviving children were:
Georg Nikolaus' male line went extinct with the death of his son Georg Michael Alexander, Count von Merenberg (1897-1965). Georg Nikolaus' issue through the female line survives. Nikolaus´granddaughter, Countess Clothilde von Merenberg (born 1941), who married Enno von Rintelin, is the last surviving member of the Merenberg lineage.
When Prince Nikolaus Wilhelm died in 1905, his nephew Grand Duke William IV of Luxembourg (or Guillaume IV) became the last dynastic male of the House of Nassau. If Nikolaus Wilhelm's children had been deemed dynastic, then his son Georg Nikolaus, Count of Merenberg would have succeeded as Head of the House of Nassau upon William IV's death. Georg Nickolaus would have thus become the reigning Grand Duke of Luxembourg.
However, his morganatic birth was deemed insurmountable, despite the fact that he had married a daughter of Tsar Alexander II of Russia. In 1907, William IV, obtained passage of a law in Luxembourg confirming the exclusion of the Merenbergs from succession to the grand ducal throne. Georg Nikolaus's protests against the Luxembourg Diet's confirmation of the succession rights of William IV's daughter, Princess Marie-Adélaïde, were expected to be taken up by the Netherlands and by the Great Powers which had guaranteed Luxembourg's neutrality in 1867.[1] Nonetheless, Marie-Adélaïde did succeed her father, to become Luxembourg's first female monarch, in 1912. She was in turn succeeded by her sister Charlotte, whose descendants have reigned over the grand duchy since then.
The heads of the house of Merenberg after 1912 were:
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