Schlosstheater Schönbrunn
... that the palace theatre Schlosstheater Schönbrunn , commissioned by Maria Theresa, opened on 4 October 1747, her husband's name day?
... that the palace theatre <b id="mwBNI"><a href="./Schlosstheater_Schönbrunn" id="mwBNM" rel="mw:WikiLink" title="Schlosstheater Schönbrunn">Schlosstheater Schönbrunn</a></b> <i id="mwBNQ">(hall pictured)</i>, commissioned by <a href="./Maria_Theresa" id="mwBNU" rel="mw:WikiLink" title="Maria Theresa">Maria Theresa</a>, opened on 4 October 1747, her husband's <a href="./Name_day" id="mwBNY" rel="mw:WikiLink" title="Name day">name day</a>?<!--Special occasion hook for October 4-->