On Friday, April 18 the ISI Foundation and CRT Foundation announced the winners of the First Lagrange Prize: Brian Arthur and Yakov Sinai for their contributions to the science of complex systems, and Philip Ball for his contributions to the promotion of complexity as a popular science writer. The award ceremony took place in the gorgeous Stupinigi Royal Hunting Palace. In the photo, Brian Arthur is giving his acceptance address; the panel included Angelo Miglietta, Giovanni Ferrero and Andrea Comba of CRT Foundation, Mario Rasetti and Tullio Regge (General Secretary and President of ISI Foundation), and Enrico Bellone of Le Scienze. Following the ceremony there was a delicious dinner and a fun dance.