Perhaps his most important aristocratic patron was Archduke Rudolph, the youngest son of Emperor Leopold II, who in 1803 or 1804 began to study piano and composition with him.
Quizais o mecenas aristocrátivo máis importante de Beethoven foi o arquiduque Rudolph, o fillo máis novo do emperador Leopoldo II, que en 1803 ou 1804 comezou a estudar piano e composición con Beethoven.