Meghan Markle issued new warning over her ire on Kate Middleton

Meghan Markle, who's said to be writing her own memoir following in her husband Prince Harry's footsteps, has been warned of powerful reaction from the royal family if she dares to lob new bombs on the palace.

The Duchess of Sussex has been warned that if she goes after Princess Kate in her "upcoming memoir" would be the "last straw" for the royal family, an expert has claimed.

The Duke made mistake and faced the music for his direct attack on the royal family as he also alleged his elder brother Prince William of physically assaulting him on one occasion.

Harry's claims failed to get sympathy from the people they even angered the royal fans and other people who accused him of following the instructions from her wife Meghan Markle to disgrace his own people.

Meghan, who often pitted against Kate, in her own memoir could show her ire on the Princess of Wales - something which Prince William and the royal family would not respond to lightly, royal commentator Tom Bower has warned.

"She would give her side of what really happened between her and Kate in the run up to the wedding, when each allegedly made the other cry. Everyone will be fascinated to hear Meghan’s take on her relationship with Kate, whether she was hostile or welcomed her from the start," Bower told the Sun.

"She probably thought she should have got equal billing and didn’t seem to appreciate from the start that she and Harry were the B team, not on the same level as William and Kate. She will probably talk about comparisons that were made in the press between them and will come across as bitter," according to the expert.