Bombshell Letter! Meghan's Brother Begs Queen: Don't Let My Sister Die Like Diana!

In a bombshell letter exclusively obtained by RadarOnline.com, Meghan Markle’s brother claims loved ones are terrified she’ll go to an early grave — just like her husband’s mom, Princess Diana — if she refuses to fall in line with the royal family!

Thomas Markle Jr. begs Queen Elizabeth to look after his kid sister in the never-before-seen note.

The newly titled Duchess of Sussex, 36, has already earned comparisons to Diana, who was murdered in a 1997 Paris tunnel crash alongside lover Dodi Fayed.

Meghan’s half brother is paranoid a similar tragedy could await the former Suits star!

In the furious handwritten letter, obtained by RadarOnline.com, he raged: “Meghan’s dream was to be a princess someday like Diana … It would also be sad to see Meg’s dreams broken if she were to fail in her new position and disappear from the royal family."

“Diana was like a lamb to the slaughter when she married Prince Charles at age 20,” said a source.

“Diana died because she refused to toe the royal line.

“Meghan is another loose cannon who keeps thumbing her nose at royal protocol.

“We fear this can only end in heartbreak and disaster — just like Diana!”

Foul play is suspected in Diana’s death, despite exhaustive investigations claiming it was an accident.

Dodi’s father, businessman Mohammed Al Fayed, has spent years trying to prove the deaths were the result of British secret service agents working for the queen’s husband, Prince Philip, who ordered the slayings.

Limo driver Henri Paul was drugged and played for a patsy, investigators claim.

In the years before her death, Diana became increasingly fearful for her safety.

In 1995, she hired bodyguards and claimed there had been three attempts on her life.

In a letter written shortly before her death and handed to her butler, she predicted her own demise at the hands of Prince Charles!

Diana wrote: “My husband is planning ‘an accident’ in my car, brake failure and serious head injury.”

Meghan has made no secret of her obsession with the late princess, fawning over a video of Diana’s wedding to Charles as a girl and copying Di’s signature fashions.

Copycat Meghan also mirrored her idol with her charitable work and reportedly made a secret visit to Di’s grave to pay her respects before marrying Harry.

“Meghan told a friend, ‘Diana and I are so much alike. I know if she had lived we would have been the best of friends,’” tattled an insider.