english: In 1873, at the age of 20 "he suddenly became ill and passed away".[105] On the cause of his early death, accounts diverge.
non_english: Â 1903:Â 20 Jan (ru);Â Â Â Â 17 Freb (ru);Â Â 18 Mar (ru);Â Â Â Â 21 Apr (ru);Â Â Â Â