Jan Kleczyński Jr.

He was a son of Jan Kleczyński, Sr., a famous Polish pianist and one of the best Warsaw chess masters of the 19th century.

Jan Kleczyński Junior played in Warsaw City Chess Championship (1896, 1897).

[1] Jan Kleczyński represented Poland in the 1st unofficial Chess Olympiad at Paris 1924.

[4] Jan Kleczyński wrote a weekly chess column for Kurier Warszawski (1897–1939).

He died of a heart attack during the bombing of Warsaw at the end of September 1939 (World War II).