Amadis de Gaule, the culmination of an operatic career
Unlike any other member of his illustrious family before him, Johann Christian Bach (who was to marry the soprano Cecilia Grassi) maintained a lifelong connection with the world of opera. He was, incidentally, also the only member who converted from Lutheranism to Catholicism.
CD-Book Johann Christian Bach. Amadis de Gaule (2012). Translation: Mary Pardoe.