<a href="https://en.wikipedia.org/wiki/Massacre_at_Béziers" id="mwIA" rel="mw:WikiLink" title="Massacre at Béziers">Massacre at Béziers</a>: The first major military action of the <a href="https://en.wikipedia.org/wiki/Albigensian_Crusade" id="mwIQ" rel="mw:WikiLink" title="Albigensian Crusade">Albigensian Crusade</a>.