From The Costume ball book:
Alexander Alexeevich Beliaev(from 7oct 1904 Count Ridigher-Beliaev)
Born 8Feb.1867 in SP
Son of Lieutenant General Alexey Mikhailovitch Beliaev(1831-1885)
In the rank of Staff Captain was Adjutant under GD Vladimir Alexandrovich.
On 7Oct 1904 by the highest confirmation of the State Council he was permitted to add the hereditary title and name of his wife to his own.Subsequently he was at the disposal of GD Andrey Vladimirivich,Major General of Calvary
After the revolution emigrated with his family to Poland
Died 28 DEC 1939 in Skolymov near Warsaw
Countess Maria Feodorovna Beliaeva(7Oct 1904 Countess Ridigher Beliaeva
Born 8 Nov 1864 in the estate of Lyublin (Kingdom of Poland)daughter of retired Captain Count Feodor Germanovich (Johann Friedrich)Ridigher ,and Sophia Yulievna ,nee von Kruzenster ,proprietors of the castle Ass in the Estlandskaya gubernia.
Granddaughter of Governor General of the kingdom of Poland Field Marshal General Friedrich Alexander Ridigher(1783-1856),first generation Count.Proprietor of the ancestral entailed estate of Lyublin.
Up to her marrige-Maid of Honor of GD Maria Pavlovna
After emigration lived in Poland and Germany
Died 2DEC.1952 in Pappenheim (Bavaria)
Children:Maria 1896-1978 married to Prince Dmitry Iosifovich Shalikashvili 1932 captain and Military Adviser to the Polish Army .Sons
Prince Joseph and John are generals of the US Army