{Top plaque:}
Queen Elizabeth II, on March 20th 2012, here replied to addresses presented by both Houses of Parliament on the occasion of Her Majesty's Diamond Jubilee.
{Lower plaque:}
Queen Elizabeth II, on April 30th 2002, here replied to addresses presented by both Houses of Parliament on the occasion of Her Majesty's Golden Jubilee.
Site: Westminster Hall - 2 (6 memorials)
SW1, St Margaret Street, Westminster Hall
Referring to the plaques, as viewed by the people in our photo who are reading them the right way up:
At the left: George V Silver Jubilee;
Middle column, from the top: Queen Elizabeth II Diamond; Queen Elizabeth II Golden; William Wallace; Queen Elizabeth II Silver;
At the right: Simon de Montfort;
and on a lower step, but not visible in our photo: Charles I;
and on the next landing down:
an empty space left by a plaque that has been removed (interesting but we have no information); and Mandela.
This south end of the hall has been through a number of changes. We found images at Living Heritage and Alamy and Explore Parliament.