Brill’s New Pauly

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(325 words)

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I. Constitutional law

An institution of Roman international law, sponsio was a form of treaty characterized by stipulatio (Gai. Inst. 3,94), and a normal form even for an oral peace treaty ( pax ) entered into by the emperor [1. 97; 2. 46]. From the High Republic onwards, it also meant 'a treaty entered into by a Roman commander by virtue of his word, without the authorization of the Senate' ([3. 48]: 'battlefield treaty'; cf. [2. 47]). As demonstrated by the rejection of the capitulation ( pactio ) in the war agai…

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Kehne, Peter (Hannover) and Forgó, Nikolaus (Vienna), “Sponsio”, 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 19 August 2022 <>
First published online: 2006
First print edition: 9789004122598, 20110510

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