Vigla
... that the Byzantine regiment of the Vigla, which served as an imperial bodyguard unit in the 8th–11th centuries, had its origin in late Roman cavalry units of the 5th century?
... that the <a class="mw-redirect" href="./Byzantine" id="mwAS0" rel="mw:WikiLink" title="Byzantine">Byzantine</a> regiment of the <i id="mwAS4"><b id="mwAS8"><a href="./Vigla_(tagma)" id="mwATA" rel="mw:WikiLink" title="Vigla (tagma)">Vigla</a></b></i>, which served as an imperial bodyguard unit in the 8th–11th centuries, had its origin in <a href="./Late_Roman_army" id="mwATE" rel="mw:WikiLink" title="Late Roman army">late Roman</a> cavalry units of the 5th century?