Deutschhaus
...that the Deutschhaus building in Mainz served as the seat of the first democratic elected parliament in Germany during the Mainz Republic and is the seat of the Rhineland-Palatinate Landtag today?
...that the <b id="mwRA"><a href="./Deutschhaus_Mainz" id="mwRQ" rel="mw:WikiLink" title="Deutschhaus Mainz">Deutschhaus</a></b> building (<i id="mwRg">pictured</i>) in <a href="./Mainz" id="mwRw" rel="mw:WikiLink" title="Mainz">Mainz</a> served as the seat of the first democratic elected parliament in Germany during the <a class="mw-redirect" href="./Mainz_Republic" id="mwSA" rel="mw:WikiLink" title="Mainz Republic">Mainz Republic</a> and is the seat of the <a class="mw-redirect" href="./Rhineland-Palatinate_Landtag" id="mwSQ" rel="mw:WikiLink" title="Rhineland-Palatinate Landtag">Rhineland-Palatinate Landtag</a> today?