Prince William is likely to further distance himself from his brother, Prince Harry, when he becomes King, and could even strip him of his HRH title, according to a former royal butler.

Grant Harrold, who worked for King Charles, Queen Camilla, Prince William, Princess Kate and Prince Harry until 2011, believes rumours of a documentary about Harry’s late mother, Princess Diana, could further deepen the rift between the brothers.

Mr Harrold, speaking on behalf of OLBG, said: “Under the reign of King William, if that’s the name he goes with, you could see him doing everything in his power to distance his brother.”

He added: “I think that it will be on William’s mind to remove the title, if things continue the way they are.”