<P> The Robing Room was also briefly used as the House of Lords' meeting chamber while the House of Lords Chamber was occupied by the House of Commons, whose chamber had been destroyed by the Blitz in 1941 . </P> <P> Immediately north of the Robing Room is the Royal Gallery . At 33.5 by 13.7 metres (110 by 45 ft), it is one of the largest rooms in the Palace . Its main purpose is to serve as the stage of the royal procession at State Openings of Parliament, which the audience watch from temporary tiered seating on both sides of the route . It has also been used on occasion by visiting statesmen from abroad when addressing both Houses of Parliament, as well as for receptions in honour of foreign dignitaries, and more regularly for the Lord Chancellor's Breakfast; in the past it was the theatre of several trials of peers by the House of Lords . Documents from the Parliamentary Archives are on display in the Royal Gallery (including a facsimile of Charles I's death warrant), and the tables and seating offer a workspace for members of the Lords that is conveniently close to their debating chamber . </P> <P> The decorative scheme of the Royal Gallery was meant to display important moments in British military history, and the walls are decorated by two large paintings by Daniel Maclise, each measuring 13.7 by 3.7 metres (45 by 12 ft): The Death of Nelson (depicting Lord Nelson's demise at the Battle of Trafalgar in 1805) and The Meeting of Wellington and Blücher (showing the Duke of Wellington meeting Gebhard Leberecht von Blücher at the Battle of Waterloo in 1815). The murals deteriorated rapidly after their completion due to a range of factors, most importantly atmospheric pollution, and today they are almost monochrome . The rest of the planned frescos were cancelled, and the walls are filled with portraits of kings and queens from George I onwards . Another decorative element with military undertones are the eight statues of gilded Caen stone that flank the three doorways and the bay window of the Gallery, sculpted by John Birnie Philip . Each depicts a monarch during whose reign a key battle or war took place . They are: Alfred the Great and William the Conqueror; Richard I and Edward III; Henry V and Elizabeth I; William III and Anne . The panelled ceiling, 13.7 metres (45 ft) above the floor, features Tudor roses and lions, and the stained - glass windows show the coats of arms of the Kings of England and Scotland . </P> <P> The Prince's Chamber is a small anteroom between the Royal Gallery and the Lords Chamber, named after the room adjoining the Parliament Chamber in the Old Palace of Westminster . Thanks to its location, it is a place where members of the Lords meet to discuss business of the House . Several doors lead out of the room, to the division lobbies of the House of Lords and to a number of important offices . </P>

Which two frescos are displayed in the royal gallery in the houses of parliament