Leopold Eustachius Czapek

Leopold Eustachius Czapek (15 November 1792, Český Krumlov, Bohemia - 1840, Iliria) was an Austrian pianist and composer. He was friends with Frédéric Chopin and corresponded regularly with him. Among his own compositions is a variation of Diabelli's waltz for Part II of the "Vaterländischer Künstlerverein".