Royal expert Robert Lacy suggested in an interview that Harry’s relationship with Meghan was the tipping point for the brothers’ feud.

Speaking to Entertainment Tonight, Mr Lacy claimed Meghan and Harry’s relationship was the final straw for the brothers.

“So, when he found Meghan, he went for that, and when William said to him, ‘Look, perhaps you should slow down a bit,’ Harry exploded.”.

Mr Lacy then went on to claim William asked Prince Charles to intervene in Harry’s new relationship with Meghan.

Omid Scobie and Carolyn Durand previously claimed in their book, Finding Freedom, Prince Harry’s relationship with the Duchess of Sussex served as the catalyst for his and William’s row

They claimed William was skeptical of Meghan, reporting the Duke allegedly told Harry: “Don’t feel you need to rush this

The authors claim Harry was “p***** off that his brother would ask such a thing” and viewed his brother as “snobbish” for asking him to take it slow with Meghan, leading to the rift

Mr Lacy also told Us Weekly Prince Harry’s decision to step back from the royal family blindsided William and Charles