Anton Schindler
While Holz was working as one of Beethoven's copyists, the composer fired his current secretary Anton Schindler and Holz became Beethoven's secretary in 1825. Letters to Holz and entries in Beethoven's conversation books (used by people when conversing with the composer in his later years) show that Holz was a devoted admirer, and of great help to the composer. Beethoven reconciled with Schindler in 1826; Schindler returned to assist Holz with managing Beethoven's affairs.