MICHAEL JACKSON's mother has been given temporary guardianship of his three children.
Katherine Jackson will be told whether she has permanent custody at a hearing in August.
Her lawyer said the family had not heard from Deborah Rowe, the biological mother of Jackson's eldest children.
The singer's youngest son was born to a surrogate mother whose identity has never been revealed.
The court documents state that Ms Rowe's whereabouts is unknown, while "none" is stated next to the entry for the mother of Prince Michael II.
Jackson, who died suddenly last week, left three children - Michael Joseph Jackson Jr, known as Prince Michael, 12, Paris Michael Katherine Jackson, 11, and seven-year-old Prince Michael II.
Family lawyer Londell McMillan said: "I don't think there will be anybody who thinks there is someone better" than Mrs Jackson to be given custody.
Documents also show that Mrs Jackson has also petitioned to take over the children's estate, the value of which is unknown.
It confirms that they are currently staying under her care at the Jackson family compound.
It also says that "they have a long-established relationship with paternal grandmother and are comfortable in her care".
