Francesca Caccini ([franˈtʃeska katˈtʃiːni]; 18 September 1587 – between 1641 and 1645 most likely; or she may have remarried.[1]) was an Italian composer, singer, lutenist, poet, and music teacher of the early Baroque era. She was also known by the nickname "La Cecchina" [la tʃekˈkiːna], given to her by the Florentines and probably a diminutive of "Francesca".[2] She was the daughter of Giulio Caccini. Her only surviving stage work, La liberazione di Ruggiero, is widely considered the oldest opera by a woman composer.[3] As a female composer she helped to solidify the agency and the cultural and political programs of her female patron.[4]