Marie PLEYEL (1811–1875). 2 letters to Édouard and François-Joseph Fétis; 1 page, in-8 format each (mourning). Tuesday, December 1. She was delighted “to read what you were kind enough to say about me; I hope you will soon find a moment to come with your dear father to listen to Struensée’s Polonaise.” – Wednesday, the 13th. “It is to a happy and glorious father that I offer my most sincere and affectionate congratulations. Yesterday, upon learning of your child’s beautiful and brilliant success, I felt true joy in my heart, and realized that my misfortune did not prevent me from taking a very, very lively part in the happiness of those I love”… Enclosed is a note asking for tickets for Friday (1 p., in-12 format).