the largest room in the palace, the ballroom is used for knighting ceremonies as well as state banquets.
these formal dinners take place on the first evening of a state visit by a visiting Head of State. on these occasions, often over 150 guests in formal "white tie and decorations", including tiaras for women, dine off gold plate. the largest and most formal reception at Buckingham Palace takes place every November, when the Queen entertains members of the foreign diplomatic corps resident in London.