AP Photo/Robyn Beck, file

Katherine Jackson has petitioned a California court for guardianship of her late son Michael’s three young children: Prince Michael Jackson I, 12, Paris Michael Katherine Jackson, 11, and Prince “Blanket” Michael Jackson II, 7.

The papers were filed in Los Angeles Supreme Court and a hearing has been set for August 3, The Associated Press reports.

The filings show that Mrs. Jackson is also petitioning to take over the children’s estate — it’s value is listed as “unknown” in the filing.

“Minor children are currently residing with paternal grandmother,” the filing states of why Katherine Jackson should be appointed guardian. “They have a long established relationship with paternal grandmother and are comfortable in her care.”

The filings note that Deborah Rowe is the mother of the Jackson’s two eldest children, but list her whereabouts as “unknown.”

Blanket’s mom is also listed as “unknown.”

UPDATE:

A Los Angeles Superior Court judge has approved Katherine Jackson’s request for temporary guardianship of Michael Jackon’s children.

A hearing on whether she can become the children’s permanent guardian is set for August 3.

The court did not grant Mrs. Jackson’s request to serve as the temporary guardian of the children’s estate.