Beethoven repaid the prince by dedicating several pieces to him — the six String Quartets opus 18, the Triple Concerto, the Harp Quartet Opus 74 and the Lieder cycle An die ferne Geliebte, as well as the Symphonies No. 3, 5 and 6. The palace at Prague Castle also has original performing parts with hard-written annotations by Beethoven for Symphonies Nov. 4 and 5,