Mathilda d'Orozco

Mathilda Valeria Beatrix d'Orozco (14 June 1796 – 19 October 1863), also by marriage known as Cenami, Montgomery-Cederhjelm and Gyllenhaal, was a Swedish (originally Spanish-Italian) noble and salonist, composer, poet, writer, singer, amateur actress and harpsichordist.

Read more about this composer on Wikipedia.