Jan IV Oświęcimski
...that Jan IV Oświęcimski, the duke of Oświęcim from 1445 to 1456, harassed the King of Poland so much that he was paid a debt that was promised him four years earlier?
...that <b id="mwFoA"><a class="mw-redirect" href="./Jan_IV_Oświęcimski" id="mwFoE" rel="mw:WikiLink" title="Jan IV Oświęcimski">Jan IV Oświęcimski</a></b>, the <a class="mw-redirect" href="./Duke_of_Oświęcim" id="mwFoI" rel="mw:WikiLink" title="Duke of Oświęcim">duke of Oświęcim</a> from 1445 to 1456, harassed the <a class="mw-redirect" href="./King_of_Poland" id="mwFoM" rel="mw:WikiLink" title="King of Poland">King of Poland</a> so much that he was paid a debt that was promised him four years earlier?