A visit by Richard III was the origin of the gold emblem angel holding the King's crown over the original archway. In 1483 Richard held court and it was from the "Chambre de' Roi", that he dispatched a letter bidding for the Great Seal to proclaim the treachery of his cousin, the Duke of Buckingham, leading to the signature of Buckingham's death warrant. Copies of the letter, the original of which is kept by the British Museum, are displayed adjacent to the Richard III lounge and the King's Room Restaurant.