Glarentza
... that Glarentza was the most important town and main port of the Principality of Achaea in Frankish Greece?
... that <b id="mwA3A"><a href="./Glarentza" id="mwA3E" rel="mw:WikiLink" title="Glarentza">Glarentza</a></b> was the most important town and main port of the <a href="./Principality_of_Achaea" id="mwA3I" rel="mw:WikiLink" title="Principality of Achaea">Principality of Achaea</a> in <a class="mw-redirect" href="./Frankish_Greece" id="mwA3M" rel="mw:WikiLink" title="Frankish Greece">Frankish Greece</a>?