Konstantin Pyatnitsky

Russian publisher and memoirist¹

Konstantin Petrovich Pyatnitsky (Russian: Константин Петрович Пятницкий; 31 March 1864 – 6 January 1938) was a Russian journalist, publisher and memoirist from the Russian Empire and Soviet Union. Pyatnitsky was a co-founder of the publishing company Znanie and one–time close associate of Maxim Gorky.²

From Wikipedia’s article on Konstantin Pyatnitsky (this version), CC BY-SA 4.0.

Born Mar 31, 1864, died Jan 6, 1938.¹