King Charles has long been asked to make the Princess of Wales an Order of the Garter.

King Charles has made two major appointments ahead of Garter Day on Monday.

The 75-year-old monarch has appointed former MI5 director general Baroness Manningham-Buller as Chancellor of the Order of the Garter and Tory peer and former insurance broker Lord Ashton of Hyde as the Master of the Horse, a ceremonial role in charge of the Royal Mews on state occasions.

Lady Manningham-Buller, who succeeds the Duke of Abercorn on his retirement, is the first female Chancellor of Britain’s oldest and most senior order of chivalry since the office’s inception in 1475.

It comes as increasing calls have been made for the Princess of Wales, who is currently undergoing cancer treatment, to be made a member of the Order of the Garter.