Best of friends,
Cordial greetings, and best thanks for the many and manifold troubles you have taken on my behalf.
I had promised Princess Wittgenstein news as to the performance of my Tannhäuser; but I cannot for the present give you any other than that the opera will not be performed either Sunday or Monday, as I had promised, owing chiefly to the indisposition of Tichatschek. Even if he were well, it could not take place, as we have first of all to satisfy a star, Formes. Probably Tannhäuser will not be possible till about a week later.
In any case I hope soon to see you again, and am glad accordingly. May I ask you to remember me to the Princess?
Source: Project Gutenberg eBook #3835, Correspondence of Wagner and Liszt — Volume 1, No. 8