Britain's Prince Harry and his fiancée US actress Meghan Markle are getting ready to tie knot on the 19th of this month.

But the wedding may not hold if Markle’s estranged brother’s grievances is taken seriously.

You see, barely two weeks away from the wedding date, Meghan Markle’s estranged half-brother, Thomas Markle Junior has stirred a major controversy demanding that the wedding be canceled.

The elder sibling shared a handwritten letter to the media on Wednesday warning the 33-year-old royal that it’s “not too late” to stop the wedding.

“As more time passes to your royal wedding, it became very clear that this is the biggest mistake in royal wedding history. Meghan Markle is obviously not the right woman for you,” the 51-year-old wrote.

Thomas told Prince Harry that the 36-year-old American actress is a “jaded, shallow, conceited woman that will make a joke of you and the royal family heritage.”

“I’m confused why you don’t see the real Meghan that the whole world now sees,” he claimed.

“Meghan’s attempt to act the part of a princess like a below C average Hollywood actress is getting old.

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“What kind of person starts out by using her own father until he’s bankrupt, then forgets about him in Mexico leaving him broke, over mostly all her debts. And when it’s time to pay him back she forgets her own father like she never knew him,” Thomas wrote.

Thomas went on to claim that their father is still struggling financially after he allegedly went into debt to support Markle’s dreams of becoming a sought-after actress.

He also claimed the patriarch wasn’t invited to the wedding.

“It’s very apparent that her tiny bit of Hollywood fame has gone to her head,” he wrote.

“Not to mention, to top it all off, she doesn’t invite her own family and instead invites complete strangers to the wedding. Who does that? You and the royal family should put an end to this fake fairytale wedding before it’s too late,” he added.

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