Katherine Jackson has accused her nephew of abusing her.

The 86-year-old matriarch - the mother of the late Michael Jackson and his famous siblings including Janet, Jermaine and La Toya Jackson - has obtained a restraining order against ''abusive con-man'' Trent Lamar Jackson, who previously acted as her driver.

In court documents obtained by TMZ and People, Katherine claims she was manipulated for years by Trent and left ''in a constant state of fear and confusion'' so he could take control of her finances and stay in her guest house for free.

The paperwork goes on to claim Trent tried to estrange his aunt from her children and she had to hide in her closet in order to speak to her offspring freely. Katherine's eldest daughter Rebbie and some of her other kids are willing to testify against him.

While Katherine - who was appointed legal guardian to Michael's children Prince, 19, Paris, 18, and Bigi, 14, after his death - is currently in London visiting Janet, her husband Wissam Al Mana and their new baby son Eissa, she is concerned about repercussions on her return to the US.

The documents state: ''Now that he knows his conduct will be revealed, she fears what he may do to her upon her return.''

According to Katherine, she tried to fire Trent from his job as her driver, for which he was paid a ''near six-figure'' sum, on February 3 with the Sheriff present, but he fled as deputies and her lawyer arrived.

Trent - who has been accused of taking money from his aunt's accounts and using her credit cards for personal purchases - must stay 100 yards away from Katherine under the terms of the order.

The judge also ordered him to move out of her guest house and return all his keys, passwords and combinations to the property.

A further hearing will take place on March 1.