Complex sentence: Every year in this room there is the inauguration of the academic year and are made international conferences in which participated people like Mario Draghi, Romano Prodi, Tony Blair, Mario Monti, Giorgio Napolitano, José Manuel Barroso and others.
Split into simpler sentences: Every year in this room there is the inauguration of the academic year. International conferences are also held here and have featured participants like Mario Draghi, Romano Prodi, Tony Blair, Mario Monti, Giorgio Napolitano, José Manuel Barroso and others.