John Doukas
... that the Byzantine megas doux John Doukas was taken hostage as a child, took captive a Serbian king, led a fleet against Chaka Bey and recovered much of western Anatolia from the Seljuks?
... that the <a class="mw-redirect" href="./Byzantine" id="mwAdM" rel="mw:WikiLink" title="Byzantine">Byzantine</a> <i id="mwAdQ"><a href="./Megas_doux" id="mwAdU" rel="mw:WikiLink" title="Megas doux">megas doux</a></i> <b id="mwAdY"><a href="./John_Doukas_(megas_doux)" id="mwAdc" rel="mw:WikiLink" title="John Doukas (megas doux)">John Doukas</a></b> was taken hostage as a child, took captive a <a href="./Constantine_Bodin" id="mwAdg" rel="mw:WikiLink" title="Constantine Bodin">Serbian king</a>, led a fleet against <a class="mw-redirect" href="./Chaka_Bey" id="mwAdk" rel="mw:WikiLink" title="Chaka Bey">Chaka Bey</a> and recovered much of western <a href="./Anatolia" id="mwAdo" rel="mw:WikiLink" title="Anatolia">Anatolia</a> from the <a class="mw-redirect" href="./Seljuks" id="mwAds" rel="mw:WikiLink" title="Seljuks">Seljuks</a>?