22 Nikolai Nikolayevich of Russia, the Grand Duke, (1856-1929). Telegram, addressed to Maria Dmitrievna Lodygensky, signed by the Grand Duke,1 page, in-4, dated 19/08/1924, Château de Choigny in Santeny. - Obolensky, Nikolai Leonidovich, Prince (1878-1960). The Head of the Grand Duke Nikolai Nikolayevich's Chacellery and an uncle of the Soviet writer Constantin Simonov, the winner of five Stalin prizes, particularly known for his poem "Kill - the! "He bequeathed his archives to A.I. Solzhenitsyn. Typed letter , signed, 1 page, in-4, dated 23/06/1926, Choigny, addressed to Alexander Lodygensky. (Archives of Lodygensky).