Andrea Chénier
Luigi Illica (9 May 1857 – 16 December 1919) was an Italian librettist who wrote for Giacomo Puccini (usually with Giuseppe Giacosa), Pietro Mascagni, Alfredo Catalani, Umberto Giordano, Baron Alberto Franchetti and other important Italian composers. His most famous opera libretti are those for "La Bohème", "Tosca", "Madama Butterfly" and "Andrea Chénier".