I learn that you are publishing the pianoforte arrangement of Kittl's opera The French at Nice, and I beg you at any rate to omit my name, as author of the libretto, from the title. I particularly pledged Kittl not to announce my name publicly as author, and I am sorry that this has been done already elsewhere. At present the most confused opinions are held about this authorship and I want to encourage them as little as possible.
Richard Wagner
Source: Letters of Richard Wagner, Volume 1, ed. Altmann/Hull (London: Dent, 1927), No. 244