The Duke of Sussex will come face-to-face with the Queen on Monday amid Buckingham Palace fears that he and his wife could go public with damaging accusations about the family if they do not get what they want.

As the Queen, the Prince of Wales and the Duke of Cambridge join forces to confront the Duke, 35, for the first time since he announced plans to walk away from his role, the threat of a “no-holds-barred” television interview loomed large.

The crisis summit taking place at Sandringham is expected to last several hours as the family combs through the various scenarios that could form a blueprint for the Sussex’s “progressive” new roles.

Prince Charles was due to travel back from Oman on Sunday night for the family summit having flown out to attend a condolence ceremony following the death of Sultan Qaboos bin Said al Said.

The Queen has made it clear she wants the “Sussex situation” as it has become known, resolved within days to prevent further damage to the monarchy.

The Duke of Edinburgh, 98, is said to have been left “deeply hurt” by his grandson’s decisions and is angry at the couple's “lack of respect”.