Meghan Markle has left her soon-to-be sister-in-law Kate Middleton’s famous sibling off the guest list for her royal wedding this weekend — and the Duchess of Cambridge is seething, a source exclusively told RadarOnline.com!

“Meghan not inviting Pippa Middleton to the wedding has upset Kate,” the source claimed.

As RadarOnline.com previously reported, the fashionista did not invite Meghan to her own wedding to hedge fund manager James Matthews last May. Pippa is now reportedly pregnant with her first child.

In addition, Kate, along with husband Prince William, are allegedly “embarrassed” by Meghan’s family drama.

“They blame her for the whole mess, and worry about what Harry has gotten into,” the source explained.

However, Prince Harry is sticking by his bride, and is “upset” by how all the scandal has affected her.

As RadarOnline.com previously reported, Meghan’s father Thomas is no longer attending the nuptials on May 19 after being accused of staging photos and suffering a heart attack. Kensington Palace previously announced the Hollywood lighting director turned Mexican recluse was scheduled to walk her down the aisle.

Her sister Samantha and brother Thomas Junior have also publicly bashed her.

Will Meghan and Kate make up before the wedding? Sound off in the comments below.

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