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
All jurisdiction was vested in the community or, in other words, in the king, who administered justice or "command" (-ius-) on the "days of utterance" (-dies fasti-) at the "judgment platform" (-tribunal-) in the place of public assembly, sitting on the "chariot-seat" (-sella curulis-);(1) by his side stood his "messengers" (-lictores-), and before him the person accused or the "parties" (-rei-). No doubt in the case of slaves the decision lay primarily with the master, and in the case of women with the father, husband, or nearest male relative;(2) but slaves and women were not primarily reckoned as members of the community.
1. This "chariot-seat"--philologically no other explanation can well be given (comp. Servius ad Aen. i. 16)--is most simply explained by supposing that the king alone was entitled to ride in a chariot within the city (v. The King)--whence originated the privilege subsequently accorded to the chief magistrate on solemn occasions--and that originally, so long as there was no elevated tribunal, he gave judgment, at the comitium or wherever else he wished, from the chariot-seat.
2. Cf. I. V. The Housefather and His Household
Over sons and grandsons who were -in potestate- the power of the -pater familias- subsisted concurrently with the royal jurisdiction; that power, however, was not a jurisdiction in the proper sense of the term, but simply a consequence of the father's inherent right of property in his children. We find no traces of any jurisdiction appertaining to the clans as such, or of any judicature at all that did not derive its authority from the king.
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Reference address : https://www.ellopos.net/elpenor/rome/1-11-law-justice.asp?pg=3