The opera is set in Rome and is based on the life of Cola di Rienzi ( 1313 -- 1354 ) , a late medieval Italian populist figure who succeeds in outwitting and then defeating the nobles and their followers and in raising the power of the people .
The story of the opera is set in Rome and is based on the life of Cola di Rienzi ( 1313 -- 1354 ) , a medieval Italian populist figure who manages to trick the nobles and their followers . He helps the people to get power .