Pseudo-Corbulo, once thought to be the portrait of <a href="https://en.wikipedia.org/wiki/Gnaeus_Domitius_Corbulo" class="extiw" title="en:Gnaeus Domitius Corbulo">Gnaeus Domitius Corbulo</a>, actually a portrait of an unknown personality of the 1st century BC. Parian marble.
CC BY 2.5
Marie-Lan Nguyen (<a href="//commons.wikimedia.org/wiki/User:Jastrow" title="User:Jastrow">User:Jastrow</a>) 2009