Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
Sieges - Praeneste - Norba - Nola
With this battle the war was, in the main, at an end. The garrison of Praeneste surrendered, when it learned the issue of the battle of Rome from the heads of Carrinas and other officers thrown over the walls. The leaders, the consul Gaius Marius and the son of Pontius, after having failed in an attempt to escape, fell on each other's swords. The multitude cherished the hope, in which it was confirmed by Cethegus, that the victor would even now have mercy upon them. But the times of mercy were past. The more unconditionally Sulla had up to the last moment granted full pardon to those who came over to him, the more inexorable he showed himself toward the leaders and communities that had held out to the end.
Of the Praenestine prisoners, 12,000 in number, most of the Romans and individual Praenestines as well as the women and children were released, but the Roman senators, almost all the Praenestines and the whole of the Samnites, were disarmed and cut to pieces; and the rich city was given up to pillage. It was natural that, after such an occurrence, the cities of new burgesses which had not yet passed over should continue their resistance with the utmost obstinacy. In the Latin town of Norba for instance, when Aemilius Lepidus got into it by treason, the citizens killed each other and set fire themselves to their town, solely in order to deprive their executioners of vengeance and of booty.
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Reference address : https://www.ellopos.net/elpenor/rome/4-09-cinna-sulla.asp?pg=51