I want to know the answer to the following question:
Who dedicated his 1915 piano Études to Chopin?
All the background I'm provided with is that "Two of Chopin's long-standing pupils, Karol Mikuli (1821–1897) and Georges Mathias, were themselves piano teachers and passed on details of his playing to their own students, some of whom (such as Raoul Koczalski) were to make recordings of his music.". Is that enough to answer the question?