Nicholas Nicolaievich was in
Cannes with his two sons when his brother
Alexander II was assassinated, returning immediately to Russia in March 1881. The ascension to the Russian throne of his nephew, Alexander III, marked the beginning of the Grand Duke's steady decline.
Alexander III did not have any special sympathy for his uncle and Nicholas Nicholaievich was resolutely deprived of all his influence. His authority suffered even further when he was involved in fraudulent military requisitions. When the Grand Duke tried to explain his actions to the Nouvelle Revue of
Paris 1880, he indiscreetly attacked government officials and military commanders and eventually was removed from his post.
Alexander III also criticized his uncle's extramarital affairs. By then, Nicholas Nicholaievich was living openly with his mistress. His wife the Grand Duchess left him for good in 1881 and moved to
Kiev, but refused to grant the
divorce he wanted. The couple's adult sons took their mother's side in the family breakup, but continued to live at the palace and confronted Catherine once she was waiting for their father in the Palace he shared with his wife. Catherine Chislova nagged Nicholas to provide for her and their children, he soon became financially embarrassed and had to mortgage
Nicholas Palace in St. Petersburg. In 1882, Nicholas Nicolaievich was put under supervision due to the squandering of his fortune; he lived as a private gentleman in a modest house. Grand Duke Nicholas Nicolaievich, unable to get a divorce, hoped to survive his wife and then marry his mistress, but it was Catherine Chislova who died unexpectedly in
Crimea while Grand Duchess Alexandra Petrovna would survive him by nine years. Shortly after his mistress' death, Nicholas went mad; he had oral
cancer that spread to his brain. Suffering from delusion, he was convinced that all women were in love with him. During one ballet performance, the Grand Duke even attacked a young male dancer that he took to be a woman. In 1890, Nicholas Nicolaievich was declared insane and kept locked indoors in Crimea. He died in
Alupka, Crimea on 25 April 1891. The Grand Duke's reputation at the imperial court was low and his death was not deeply felt. He had squandered all his tremendous wealth and his palace was immediately sold to cancel his massive debts.
Honours ;Russian •
Knight of St. Andrew,
8 August 1831 •
Knight of St. Alexander Nevsky,
8 August 1831 •
Knight of the White Eagle,
8 August 1831 •
Knight of St. Anna, 1st Class,
8 August 1831 •
Knight of St. George, 4th Class,
24 October 1854; 2nd Class,
15 July 1877; 1st Class,
28 November 1877 •
Knight of St. Vladimir, 1st Class,
1 January 1863 •
Knight of St. Stanislaus, 1st Class,
1865 ;Foreign ==Ancestry==