Canonization of the first <a href="https://en.wikipedia.org/wiki/King_of_Hungary" id="mwKA" rel="mw:WikiLink" title="King of Hungary">King of Hungary</a>, <a href="https://en.wikipedia.org/wiki/Stephen_I_of_Hungary" id="mwKQ" rel="mw:WikiLink" title="Stephen I of Hungary">Saint Stephen</a> and his son <a href="https://en.wikipedia.org/wiki/Saint_Emeric_of_Hungary" id="mwKg" rel="mw:WikiLink" title="Saint Emeric of Hungary">Saint Emeric</a> celebrated as a National Day in Hungary.