Wer datete Alexander Dmitrijewitsch Lanskoi?

Alexander Dmitrievich Lanskoy, also called Sashin'ka or Sasha, (19 March [O.S. 8 March] 1758 – 6 July [O.S. 25 June] 1784) was a Russian general, favourite and lover of Catherine the Great between 1780 and 1784. It has been said that "[a] look at [her] correspondence with her favorites gives the impression she only had tender feelings for one, Alexander Lanskoi."