French cellist.

Born in Bordeaux on 5 March 1884, and passed away in 1933. Her parents were Italian, and her father was her first music teacher. She completed her training under cellist Jules Loeb at the Conservatoire de Paris, winning first prize there in 1904. In August of that year, she also received the George-Hainl Prize. In 1905, her career as a soloist began to take off at Paris's Salle Pleyel, and Emánuel Moór dedicated his "Cello Concerto No. 1, Op. 61" to her. She married the Swedish composer and organist Daniel Jeisler in 1906. The couple gave many recitals together and settled in Paris. In 1921 she played the world premiere of the "Suite pour violoncelle et orchestre ou piano" by Camille Saint-Saëns. She also premiered Théodor Dubois's "Fantasie-Stück" for cello and orchestra (1912). Caponsacchi was fond of chamber music and decided to form a trip with violinist Yvonne Astruc and pianist Hélène Léon in 1922. In 1929 she wrote to Manuel de Falla and offered him the chance to participate in a concert, after hearing Maurice Maréchal's arrangement of "Siete canciones populares españolas". Active until 1931, she gave many concerts across Europe and performed as a soloist with the Concerts du Conservatoire, Colonne, Lamoureux and Pasdeloup.