Garendon Hall
... that when Garendon Hall was demolished in 1964, the building's rubble was used in the construction of the M1 motorway?
... that when <b id="mwNg"><a href="./Garendon_Hall" id="mwNw" rel="mw:WikiLink" title="Garendon Hall">Garendon Hall</a></b> was demolished in 1964, the building's rubble was used in the construction of the <a href="./M1_motorway" id="mwOA" rel="mw:WikiLink" title="M1 motorway">M1 motorway</a>?