Aino Ackté (1876-1944) the soprano, librettist and in private. Colleagues remember the pioneer of Finnish opera. Jean Sibelius dedicated his tone poem Luonnotar to Ackté and she premiered the work on 10 September 1913 at the Three Choirs Festival in Gloucester, England. Her final public performances took place at the Savonlinna Opera Festival in 1930. Ackté is theorized to have most likely been the original model for the opera diva character Bianca Castafiore in comics books of "Adventures of Tintin".