Prince William reportedly gave Prince Harry an important message from Princess Diana during his wedding to Meghan Markle last year.

Anna Kretschmer, a journalist for Express, claimed that a lip reader revealed varying details regarding what they think Prince William told his younger brother at that time.

One of them said that Prince William asked Prince Harry if he remembered what Princess Diana told them before. Prince Harry replied to his older brother by saying that he remembers.

Prince William and Prince Harry stood in front of the altar while waiting for Markle to arrive at St. George’s Chapel in Windsor Castle. The royal siblings were seen laughing and chatting, but it is still unclear what exactly they were talking about.

Almost a month after the royal wedding, Prince William and Prince Harry are being pitted against each other. A royal expert also claimed that the once close siblings could no longer stomach working with each other.

“The once-tight brothers, being pulled in different directions by their wives who do not get on, cannot even stomach keeping their charitable projects together as they separate their households. Many want to believe the bond between the two lads who grew up in the brutal spotlight of their mother’s death is unbreakable, which is the case when taking the big picture into account,” Dan Wootton wrote for The Sun.

Last month, royal filmmaker Nick Bullen told the “Royal View” at the Television Critics Association Winter Press Tour in Los Angeles that a feud between Prince William and Prince Harry is much sexier compared to stories about Markle and Middleton’s reported fight.

“All brother fall out, all families fall out. Their fallout at the moment is becoming public,” he said (via The Huffington Post).

Rumors about a rift heightened after it was revealed that Prince Harry and Markle will soon separate from Prince William and Middleton. But a source said that the move mainly has to do with the fact that Kensington Palace is too small for them.