Katherine Jackson's nephew has accused her son Jermaine of trying to gain control over Michael Jackson's Estate

The documents, which have been obtained by TMZ, filed by Trent pick up on the fact that Katherine says in her declaration that she's been in London and, therefore, couldn't appear in court but he's convinced there's something more "sinister" going on.

Trent - who has been caring for Katherine since 2009 - then used the matriarch's disappearance in 2012 as an example and claimed Jermaine and some of his siblings held her hostage and even took her phone away in a bid to distance her from him.

Trent and his lawyer are now convinced that a similar situation could be unfolding behind closed doors as they feel Jermaine and his siblings are keen to get their hands on the Michael Jackson Estate and are trying to strip Katherine of her free will.

Trent has now asked the judge to drop the case or make Katherine appear in court as he's convinced she'll back him, like she did in 2012, if she stands before the jury.

At present, the Estate pays Katherine - the legal guardian of Michael's children since his death - a monthly stipend and when she dies, the balance of his fortune will go to his kids and various charities.

In his will, the 'Thriller' hitmaker didn't include his father Joe Jackson or his siblings.

In February, Katherine was granted a temporary restraining order against Trent after alleging he had abused her and that he had neglected her health.

She also said in her filing to the court: "I believe he has put cameras and bugs in my home, so the only place I can try and have a private conversation is in my bathroom...

"I used to be very social with my friends, like playing Scrabble, walking around in the park, sharing meals, but Trent has given them various reasons why I am not available."