September 1st 1566: Death of the painter Taddeo Zuccari (b. 1529), who passed away on his birthday.
September 3rd 1914: Election of Pope Benedict XV (r. 1914-22).
September 6th 1629: Death of the Maltese archaeologist Antonio Bosio (b. 1575), described by a later archaeologist, Giovanni Battista de Rossi (1822-94)), as the ‘Cristoforo Colombo della Roma sotterranea’ for his discovery of many of the city's catacombs.
September 7th 1791: Birth of the poet Giuseppe Gioachino Belli (d. 1863). September 11th 1599: Execution of Beatrice Cenci (b. 1577), who was convicted of murdering her father, Count Francesco Cenci. She was beheaded after a lurid murder trial, which gave rise to an enduring legend about her. Beatrice Cenci is buried in the church of San Pietro in Montorio.
September 14th 1523: Death of Pope Adrian VI (r. 1522-23), the last non-Italian to be elected pontiff for almost 500 years. Adrian VI is buried in the church of Santa Maria dell' Anima.
September 18th 96 CE: Assassination of the Emperor Domitian (r. 81-96).
September 20th 1870: Capture of Rome, which marked the end of papal rule of the Eternal City. 1934: Birth of the actress Sofia Costanza Brigida Villani Scicolone, known professionally as Sophia Loren.
September 22nd 1503: Election of Cardinal Francesco Todeschini Piccolomini as Pope Pius III. Pius III, who was the nephew of Pope Pius II (r. 1458-64), reigned for just 26 days. September 23rd 63 BCE: Birth of Gaius Octavius (d. 14 CE), who, as Augustus, would become Rome's first and longest-reigning emperor.
September 25th 1534: Death of Pope Clement VII (r. 1523-34).
September 26th 1990: Death of the writer Alberto Moravia (b. 1907), whose most famous novel is, perhaps, Il Conformista (The Conformist). September 27th 1590: Death of Urban VII who was pope for only 13 days, the shortest reign in the history of the papacy.
September 28th 29 CE: Death of Livia Drusilla (b. 59 BCE), who, as the wife of Augustus, was empress from 27 BCE to 14 CE . 1978: Death of Pope John Paul I, who only reigned for 33 days.
September 29th 1901: Birth of Enrico Fermi (d. 1954), physicist and the creator of the world's first nuclear reactor.