Princess Yekaterina Mikhailovna Dolgorukaya (In Russian Княжна Екатерина Михаиловна Долгорукая) (14 November, 1847 - 15 February, 1922)

Catherine was the daughter of Prince Mikhail Dolgoruky and Vera Visnevskaya . She was a long-time mistress of Tsar Alexander II of Russia and created Princess Yurievskaya.

Alexander was faithful to her rather than to his other mistresses.

Marie of Hesse and by Rhine, wife of Alexander II, died on 8 June, 1880. Alexander and Yekaterina married on 6 July of the same year. Yekaterina became a widow with the assassination of Alexander II on 1 March, 1881 by members of Narodnaya Volya.

Yekaterina and Alexander had four children:

• Georgi Alexandrovich Yurievsky (12 May, 1872 - 13 September, 1913). Married Alexandra of Oldenburg, Countess von Zarnekau, daughter of Konstantin Friedrich Peter, Duke of Oldenburg and Agrafena Djaparidze, Countess von Zarnekau.
• Olga Alexandrovna Yurievsky (7 November, 1874 - 10 August, 1925 Married Georg Nikolaus of Nassau, Count von Merenberg.
• Boris Alexandrovich Yurievsky (23 February - 11 April, 1876).
• Yekaterina Alexandrovna Yurievskaya (9 February, 1878 - 22 December, 1959). She married firstly Alexander Vladimirovich, Prince Baryatinsky and secondly Sergei Platonovich, Prince Obolensky.