Prince William warned of Meghan Markle's move

The rift between the Cambridges and Sussexes would flare up in public as Prince William moves closer to the throne, warned royal commentator Bonnie Greer.

In a channel 4 documentary series The Real Windsors, Greer said there were reports going into the weekend that things were better.

"But we could see very clearly there were no interactions between the couples or their children while Harry and Meghan were over for that weekend," UK's Daily Express quoted her as saying.

"Things aren't rosy between the two brothers and their wives.

"William and Kate feel that Meghan and Harry haven't acknowledged the hurt caused by the Oprah interview," she said.

Prince Harry's upcoming memoir is also a cause of concern for the British royal family.

The Duke and Duchess of Sussex's relations with the family deteriorated after their tell interview with American TV legend Oprah Winfrey.

Now Harry's tell-all memoir is also expected to further deepen the rift.