His Majesty the Sultan and Yang Di-Pertuan of Brunei Darussalam and Her Majesty Raja Isteri Pengiran Anak Hajah Saleha on Friday evening consented to attend a dinner hosted by His Royal Highness Prince Charles, The Prince of Wales and Her Royal Highness Camilla, The Duchess of Cornwall. The function was held at the Buckingham Palace, London.

According to a press release from the Prime Minister's Office, Their Majesties were greeted on arrival by Their Royal Highnesses The Prince of Wales and The Duchess of Cornwall before joining other sovereign monarchs for a reception at the Green Drawing Room.

Their Majesties then together with other sovereign monarchs proceeded to the Blue Drawing Room for the dinner, the press release stated.

"The dinner was held to welcome the sovereign monarchs attending the Diamond Jubilee Celebration of the reign of Her Majesty Queen Elizabeth II of the United Kingdom. - Borneo Bulletin (20 May 2012)