K. R.

Grand Duke Konstantin Konstantinovich of Russia (Russian: Константи́н Константи́нович, IPA: [kənstɐnʲˈtʲin kənstɐnʲˈtʲinəvʲɪtɕ] ; 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.