Article refers to publication of series of letters which had been written from mental health hospital in Pirna by Anna Moszyńska to her husband, children and friends in 1850. The publication is supplemented by personal diaries, Piotr Moszyński’s letters to his wife and doctors documentation. It was published by The Institute of Literary Research of the Polish Academy of Sciences as a part of „Women’s Archives” research project. Members of the project are concentrating on finding and studying private documents written by Polish women throughout history. Moszyńska’s letters are testimony to her battle with mental illness, isolation and separation from family.