An Austrian corps is defeated by the forces of the <a href="https://en.wikipedia.org/wiki/Duchy_of_Warsaw" id="mwdw" rel="mw:WikiLink" title="Duchy of Warsaw">Duchy of Warsaw</a> in the <a href="https://en.wikipedia.org/wiki/Battle_of_Raszyn_(1809)" id="mweA" rel="mw:WikiLink" title="Battle of Raszyn (1809)">Battle of Raszyn</a>, part of the struggles of the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Fifth_Coalition" id="mweQ" rel="mw:WikiLink" title="Fifth Coalition">Fifth Coalition</a>. On the same day the Austrian main army is defeated by a <a href="https://en.wikipedia.org/wiki/First_French_Empire" id="mweg" rel="mw:WikiLink" title="First French Empire">First French Empire</a> Corps led by <a href="https://en.wikipedia.org/wiki/Louis-Nicolas_Davout" id="mwew" rel="mw:WikiLink" title="Louis-Nicolas Davout">Louis-Nicolas Davout</a> at the <a href="https://en.wikipedia.org/wiki/Battle_of_Teugen-Hausen" id="mwfA" rel="mw:WikiLink" title="Battle of Teugen-Hausen">Battle of Teugen-Hausen</a> in Bavaria, part of a four-day campaign that ended in a French victory.