Karl Wilhelm von Willisen
... that the Prussian general Karl Wilhelm von Willisen was forced out of the Grand Duchy of Posen only two weeks after his arrival?
... that the <a class="mw-redirect" href="./Prussian" id="mwDqI" rel="mw:WikiLink" title="Prussian">Prussian</a> general <b id="mwDqM"><a href="./Karl_Wilhelm_von_Willisen" id="mwDqQ" rel="mw:WikiLink" title="Karl Wilhelm von Willisen">Karl Wilhelm von Willisen</a></b> was forced out of the <a href="./Grand_Duchy_of_Posen" id="mwDqU" rel="mw:WikiLink" title="Grand Duchy of Posen">Grand Duchy of Posen</a> only two weeks after his arrival?