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Michael Jackson's son is trying to stop his grandmother, Katherine Jackson, spending the estate's money. Blanket, 22, who is also known as Bigi, filed paperwork earlier this week, according to documents obtained by TMZ. The legal battle over Michael's estate has been going on nearly 15 years, since his death in 2009. It's believed Blanket is opposing the executors of Michael's estate, who want to sell a large portion of his catalogue of work. Blanket and his grandmother Katherine, 93, were both believed to be against a potential sale, but then Katherine appealed to the court asking the executors to proceed in exploring further options for a sale, and asking them to reimburse her for legal fees. Blanket's attorneys told the court he doesn't feel Katherine's appeal will be successful and he doesn't want to further depreciate the value of the estate with expensive legal bills. His legal team asked the court to "use its best judgment" in ruling for Katherine to be reimbursed for "reasonable attorney's fees" prior to appealing the court's ruling. Katherine had previously told the court that Michael never wanted his catalogue to be sold.

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