Priscilla Presley has fired back at claims her granddaughter Riley Keough is the biological mother of John Travolta’s youngest son.

The claim was made by Priscilla’s former business associates Brigitte Kruse and Kevin Fialko in their $50million breach-of-contract lawsuit against Priscilla and her son Navarone Garibaldi Garcia.

The duo has claimed in the lawsuit that Priscilla’s late daughter Lisa Marie donated her eggs to Travolta and his late wife Kelly Preston, and that their kids, daughter Ella Bleu, who is now 26, and son Jett, who died in 2009 at 16, may be her biological children.

They also alleged that Lisa Marie’s daughter Riley also donated her eggs to the couple and is the biological mother of their youngest son Benjamin, 15.

Priscilla’s statement in response to the claim read: “Brigitte and her co-conspirators have demonstrated that there is no bar too low, no ethical line that they are unwilling to cross in an effort to cause further pain to Priscilla Presley and her family.”

The statement continued: “These recent outrageous allegations have absolutely nothing to do with the claims in this case.”

Kruse and Fialko’s filing bases the claims on third party statements, such as: “Michael Lockwood, Lisa Marie’s ex-husband, and the father of Harper and Finley Lockwood, approached Plaintiff Kruse, telling her that John Travolta’s wife, Kelly Preston, had been unable to bear her own children, and Travolta and Presley previously used Lisa Marie’s eggs to get pregnant.”

The filing also added, “Travolta and Preston approached the Presley family in or around 2010, while in Hawaii. Lockwood claimed that Travolta said he no longer wanted to use Lisa Marie’s eggs because they did not want ‘eggs with heroin’ on them, and they orchestrated a deal, where Riley Keough gave her eggs to Travolta, so that Kelly could give birth to their son, Ben Travolta.”

“Lockwood gave Kruse a picture of Riley with her son, Ben Travolta, at John Travolta’s house in Maine. Lockwood said Riley was given an old Jaguar and paid