Optimatoi
... that the Byzantine corps of the Optimatoi originated as an elite Gothic cavalry regiment, but was downgraded to a corps of mule-drivers after participating in the failed revolt of Artabasdos?
... that the <a href="./Byzantine_Empire" id="mwB6Q" rel="mw:WikiLink" title="Byzantine Empire">Byzantine</a> corps of the <i id="mwB6U"><b id="mwB6Y"><a href="./Optimatoi" id="mwB6c" rel="mw:WikiLink" title="Optimatoi">Optimatoi</a></b></i> originated as an elite <a href="./Goths" id="mwB6g" rel="mw:WikiLink" title="Goths">Gothic</a> cavalry regiment, but was downgraded to a corps of <a href="./Mule" id="mwB6k" rel="mw:WikiLink" title="Mule">mule</a>-drivers after participating in the failed revolt of <a href="./Artabasdos" id="mwB6o" rel="mw:WikiLink" title="Artabasdos">Artabasdos</a>?