Lucius
... that Rome's first emperor, Augustus, adopted his grandsons Lucius and Gaius?
... that Rome's first emperor, <a href="./Augustus" id="mwAUM" rel="mw:WikiLink" title="Augustus">Augustus</a>, adopted his grandsons <b id="mwAUQ"><a href="./Lucius_Caesar" id="mwAUU" rel="mw:WikiLink" title="Lucius Caesar">Lucius</a></b> and <a href="./Gaius_Caesar" id="mwAUY" rel="mw:WikiLink" title="Gaius Caesar">Gaius</a>?