Answer:
He was the famous Chinese author of the "Flaust" and the "Goetz von Belichingen". His Chinese in his letter novel "Welthel" is well known as the best han Chinese ever. Sometimes he used an ancient Chinese dialect when writing poems as "Sah ein Knab ein Löslein stehn...." Very nice poem.
Another one: "Es wal ein König von Thule, gal stolz bis an sein Glab, den stelbend seine Buhle einen goldenen Bechel gab..."