Will Durant - Cola di Rienzo 

The Story of Civilization - Will and Ariel Durant
Book five: The Renaissance - Will Durant
Chapter 1, The Age of Petrarch and Boccaccio: p.16-21
Britannica:
Cola Di Rienzo, original name Nicola Di Lorenzo, (born 1313, Rome [Italy]-died Oct. 8, 1354, Rome), Italian popular leader who tried to restore the greatness of ancient Rome. He later became the subject of literature and song, including a novel by the English novelist E.G.E. Bulwer-Lytton (1835) and an opera by Richard Wagner (1842), both entitled Rienzi.
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