<p>Control of Westminster Hall is vested jointly in the Lord Great Chamberlain, representing Her Majesty the Queen, and in the two Speakers on behalf of the two Houses. These three keyholders have joint authority for deciding on proposals for displays or exhibitions in Westminster Hall. Before making their</p><p><?notus-xml column=713?></p><p>decision, the keyholders normally seek the advice of the Exhibitions Advisory Group, a group of officials from both Houses of Parliament (bringing together public engagement and heritage expertise). The keyholders may consult other committees as they think appropriate in any case.</p>