Dear Liszt,
The bearer of this greeting is my young friend Karl Ritter, whose visit I announced to you in my last letter. His family has migrated from Russia, where they formerly lived, to Dresden; and their intention is later on to settle in Switzerland near me. Karl has preceded them in any case, and will stay for the summer with me. He is thoroughly cultured and full of talent, and his musical gift especially is considerable. He was unable to resist the desire to hear my Lohengrin, the score of which he knows thoroughly, under your direction; and therefore he has journeyed to Weimar, to return to me after the second performance. I need scarcely ask you to be kind to him, for I know that it is your nature to be amiable. Please take him with you to the general rehearsal and see that he gets a good place at the performances, which his family from Dresden also will attend. I thank you in advance for this kindness.
I shall spend the day and evening of the 28th with my wife alone on the Righi. This little trip to the Alps, which has been made possible by your kindly care, will, I hope, benefit my bodily and mental condition, especially in these days when I am naturally moved by many feelings.
Richard Wagner
Source: Project Gutenberg eBook #3835, Correspondence of Wagner and Liszt — Volume 1, No. 39