About Grand Duchess Maria Nikolaevna of Russia (1819–1876)
Grand Duchess Maria Nikolaievna of Russia (Russian: ????? ??????????) (18 August 1819 – 21 February 1876) was a daughter of Emperor Nicholas I of Russia, and sister of Alexander II.
In 1839 she married Maximilian, Duke of Leuchtenberg.
She was an art collector and President of the Imperial Academy of Arts in Saint Petersburg.