The <a href="https://en.wikipedia.org/wiki/Battle_of_Trippstadt" id="mwWw" rel="mw:WikiLink" title="Battle of Trippstadt">Battle of Trippstadt</a> between French forces and those of <a href="https://en.wikipedia.org/wiki/Prussia" id="mwXA" rel="mw:WikiLink" title="Prussia">Prussia</a> and Austria begins.