Enrico Toselli, Count Consort of Montignoso (March 13, 1883 Florence – January 15, 1926 Florence) was an Italian pianist and composer. He studied the piano with Giovanni Sgambati and composition with Giuseppe Martucci and Reginaldo Grazzini. At a very early age he started on a brilliant career as a concert pianist in Italy, the principal European capitals and also in Alexandria and North America. Later he settled in Florence, teaching and composing, while still appearing frequently on the concert platform" (Quoted from The new Grove dictionary of music and musicians, under copyright). He composed a number of songs, of which the Serenata 'Rimpianto' Op.6 No.1 was the most popular. He also wrote two operettas, La cattiva Francesca (1912) and La principessa bizzarra (1913).
Although a successful performer and composer, Toselli's prodigious fame was largely due to the international scandal occasioned by his marriage to Her Imperial and Royal Highness the Archduchess Luise, Princess of Tuscany (and former Crown Princess of Saxony) in 1907. She had previously deserted her husband, Frederick Augustus III of Saxony, years earlier. Toselli and the Archduchess' marriage was not a happy one, and they separated in 1912. They had one son together, Carlo Emanuele Toselli di Montignoso (7 May 1908 - 1969). Toselli used his fame as the ex-husband of such an illustrious woman to good effect by writing a successful book of memoirs, "Mari d’altesse: 4 ans de mariage avec Louise de Toscane, ex-princesse de Saxe" (Again quoted from The new Grove dictionary of music and musicians, under copyright).
- Largely copied word for word from: Francesco Bussi. The New Grove Dictionary of Opera, edited by Stanley Sadie (1992). ISBN 0-333-73432-7 and ISBN 1-56159-228-5
- Luisa di Toscana. La mia storia, Societa' Editrice Italiana, Milano (1911).
- Enrico Toselli. Mari d’altesse: 4 ans de mariage avec Louise de Toscane, ex-princesse de Saxe, Albin Michel Éditeur, Paris (1912).
- Enrico Toselli. Il mio matrimonio con Luisa di Sassonia, Italian translation by Paolo Reni, Societa' Editrice Italiana, Milano (1912).
- Leonardo Previero. Enrico Toselli, Il musicista della Serenata, Edizioni Polistampa, Firenze (1997).