France, Prussia, Bavaria and Saxony refuse to honour the <a href="https://en.wikipedia.org/wiki/Pragmatic_Sanction_of_1713" id="mwIg" rel="mw:WikiLink" title="Pragmatic Sanction of 1713">Pragmatic Sanction</a>, and the <a href="https://en.wikipedia.org/wiki/War_of_the_Austrian_Succession" id="mwIw" rel="mw:WikiLink" title="War of the Austrian Succession">War of the Austrian Succession</a> begins.