Shumen fortress
... that the Shumen fortress was destroyed in 1444 after the battle between Władysław III of Poland and the Ottomans?
... that the <b id="mwBzo"><a class="mw-redirect" href="./Shumen_fortress" id="mwBzs" rel="mw:WikiLink" title="Shumen fortress">Shumen fortress</a></b> <i id="mwBzw">(pictured)</i> was destroyed in 1444 after the battle between <a href="./Władysław_III_of_Poland" id="mwBz0" rel="mw:WikiLink" title="Władysław III of Poland">Władysław III of Poland</a> and the <a href="./Ottoman_Empire" id="mwBz4" rel="mw:WikiLink" title="Ottoman Empire">Ottomans</a>?