This article publishes sculptures from the Tunisian site of Ziane : two Julio-Claudian portraits, rediscovered in the Cabinet des Médailles, show Agrippina the Elder and a Julio-Claudian prince, presumably Nero Julius Caesar ; several headless bodies, most of them kept in the storerooms of the Louvre, belong, as do the two heads, to a Julio-Claudian group originally exposed on the forum of Ziane which may be dated, at least according to some of the statues, to Caligula's reign. A presentation of the discovery of the site in the XlXth century offers mentions of this group and contributes to the history of the archaeological exploration of Tunisia.L'article publie des sculptures provenant du site tunisien de Ziane : deux portraits julio-claud...