Lublin Castle
...that Lublin Castle was the place where the Union of Lublin, creating the Polish-Lithuanian Commonwealth, was signed?
...that <b id="mwCks"><a href="./Lublin_Castle" id="mwCkw" rel="mw:WikiLink" title="Lublin Castle">Lublin Castle</a></b> was the place where the <a href="./Union_of_Lublin" id="mwCk0" rel="mw:WikiLink" title="Union of Lublin">Union of Lublin</a>, creating the <a class="mw-redirect" href="./Polish-Lithuanian_Commonwealth" id="mwCk4" rel="mw:WikiLink" title="Polish-Lithuanian Commonwealth">Polish-Lithuanian Commonwealth</a>, was signed?