He was born in
Warsaw (some sources say incorrectly
Kraków) as
Apolinary Kątski, the youngest of five musical siblings who all used the name
de Kontski professionally, and the only one who was not a pianist. Their father tried to have them all recognised as "
wunderkinder". He studied with his elder brother Charles de Kontski and appeared in public at the age of four, playing a concerto by
Pierre Rode. He appeared in St Petersburg, France, Germany and England, making an extraordinary impression. He was praised by the likes of
Hector Berlioz and
Giacomo Meyerbeer. ==Career==