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Ius iurandum
(569 words)

[German version]

The oath to be sworn to Roman law ( ius ) or before the court (at the praetor or iudex). The older type of oath is probably the  sacramentum , which however, from the late Republic onwards with the dying out of the legis actio sacramento, essentially described the soldier's oath. The ius iurandum was sworn by  Jupiter, all the gods or by the  genius of the emperor. The magistrates swore the existing laws with a ius iurandum in leges within five days of taking up office, and magistrates stepping down usually also swore the legitimacy of their administration …

Cite this page
Schiemann, Gottfried (Tübingen), “Ius iurandum”, in: Brill’s New Pauly, Antiquity volumes edited by: Hubert Cancik and , Helmuth Schneider, English Edition by: Christine F. Salazar, Classical Tradition volumes edited by: Manfred Landfester, English Edition by: Francis G. Gentry. Consulted online on 11 May 2021 <http://dx.doi.org/10.1163/1574-9347_bnp_e604100>
First published online: 2006
First print edition: 9789004122598, 20110510



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