A plebiscite ratifies the annexation of <a href="https://en.wikipedia.org/wiki/Veneto" id="mwcQ" rel="mw:WikiLink" title="Veneto">Veneto</a> and <a href="https://en.wikipedia.org/wiki/Mantua" id="mwcg" rel="mw:WikiLink" title="Mantua">Mantua</a> to Italy, which had occurred three days before on October 19.