gymnasium
... that the collection of the Nelson Museum, in Monmouth, Wales, was first housed in a gymnasium built by Lady Llangattock?
... that the collection of the <a href="./Monmouth_Museum" id="mwCho" rel="mw:WikiLink" title="Monmouth Museum">Nelson Museum</a>, in <a href="./Monmouth" id="mwChs" rel="mw:WikiLink" title="Monmouth">Monmouth</a>, <a href="./Wales" id="mwChw" rel="mw:WikiLink" title="Wales">Wales</a>, was first housed in a <b id="mwCh0"><a class="mw-redirect" href="./The_Nelson_Rooms,_Monmouth" id="mwCh4" rel="mw:WikiLink" title="The Nelson Rooms, Monmouth">gymnasium</a></b> <i id="mwCh8">(exterior pictured)</i> built by <a class="mw-redirect" href="./Lady_Llangattock" id="mwCiA" rel="mw:WikiLink" title="Lady Llangattock">Lady Llangattock</a>?