About Grand Duke Konstantin Konstantinovich of Russia
Grand Duke Konstantin Konstantinovich of Russia (Russian: ?????????´? ?????????´?????, IPA: [k?nst?n?'t?in k?nst?n?'t?in?v??t?] (listen); 22 August 1858 – 15 June 1915) was a grandson of Emperor Nicholas I of Russia, and a poet and playwright of some renown.
He wrote under the pen name "K.R.", initials of his given name and family name, Konstantin Romanov.