Stephen II Csák
... that Stephen II Csák unsuccessfully besieged the royal castle of Buda in September 1302?
... that <b id="mwBgE"><a href="./Stephen_II_Csák" id="mwBgI" rel="mw:WikiLink" title="Stephen II Csák">Stephen II Csák</a></b> unsuccessfully besieged the <a href="./Buda_Castle" id="mwBgM" rel="mw:WikiLink" title="Buda Castle">royal castle</a> of <a href="./Buda" id="mwBgQ" rel="mw:WikiLink" title="Buda">Buda</a> in September 1302?