William then challenges his younger brother to strike back but Harry refuses. William later returned to the scene, “regretting and apologizing”, writes Harry, according to the Guardian.
Spokesmen for the palaces of King Charles and Prince William declined to comment on the report.
William and Harry, the sons of King Charles, were once seen very close following the death of their mother, Diana, in a Paris car crash in 1997.
But they have fallen in recent years. Since Harry and Meghan stepped back from royal duties two years ago and moved to California, they have sharply criticized the British monarchy and made allegations of racism, allegations the family have rejected.
According to the Guardian, a dispute arose with William over the royal family’s displeasure with Meghan, Harry wrote.
Harry says William called Meghan “difficult,” “rude” and “abrasive,” which he says sounded like a “press narrative” about Meghan.