Moritz Moszkowski (1854-1925) is almost unknown today except to hard core piano students but he was once hailed by Paderewski as being as important a composer for the piano as Chopin.
Check out the recording of his Etude Op.92 No.2 as played by Alain Raes.
Or check out his piece La Jongleuse (the juggler). Moszkowski was known for his wit and humor and much of his music reflects that all too rare quality.
Vladimir Horowitz often included a Moszkowski piece as an encore.
Moszkowski influence can be heard on Holy Fright, a track from my upcoming album Quintessence.