The last major Danish army to raid <a href="https://en.wikipedia.org/wiki/Kingdom_of_England" id="mwIg" rel="mw:WikiLink" title="Kingdom of England">England</a> for nearly a century is defeated at the <a href="https://en.wikipedia.org/wiki/Battle_of_Tettenhall" id="mwIw" rel="mw:WikiLink" title="Battle of Tettenhall">Battle of Tettenhall</a> by the allied forces of <a href="https://en.wikipedia.org/wiki/Mercia" id="mwJA" rel="mw:WikiLink" title="Mercia">Mercia</a> and <a href="https://en.wikipedia.org/wiki/Wessex" id="mwJQ" rel="mw:WikiLink" title="Wessex">Wessex</a>, led by King <a href="https://en.wikipedia.org/wiki/Edward_the_Elder" id="mwJg" rel="mw:WikiLink" title="Edward the Elder">Edward the Elder</a> and <a href="https://en.wikipedia.org/wiki/Æthelred,_Lord_of_the_Mercians" id="mwJw" rel="mw:WikiLink" title="Æthelred, Lord of the Mercians">Æthelred, Lord of the Mercians</a>.