A Dictionary of Music and Musicians (1900)
“ But personal dislikes never lasted with Spohr. He could distinguish between a man and his work, and was always a loyal friend to Weber. The Duke's younger brother, Prince Friedrich, an admirer of Italian music, had brought a singing-master back with him from Italy, and often had Weber to go through Italian operas with him. He had a good tenor voice, and for him Weber composed an Italian scena ed aria, with chorus, from an opera 'Ines de Castro,' performed at a court-concert on Dec. 17. ”
