Liszt Ferenc (or Franz Liszt) was true Central European figure. He was a composer that changed the world and had enorme influence on music as we know it today. He also contributed to society in Germany and Austria-Hungary in great ways. He is one of the founders of the Hungarian Academy of Music, which now bears his name.
I suggest you to run through his Wikipedia page, which is truly exhaustive: http://en.wikipedia.org/wiki/Liszt
Those with more time should read his biography, which is a very good book and of course listen to his music, whose brilliance needs no explanation.