Music superstar Prince, who died suddenly last week, left no will, his sister said in court documents filed on Tuesday.
The sister, Tyka Nelson, asked in documents filed in a Minnesota state court in Carver County that a special administrator be appointed to handle his affairs and that she be appointed to probate the musician's estate.
She listed herself and five other siblings or half-siblings as Prince's heirs but gave no value of his assets or debts.
The value of his music catalog alone has been estimated at over $500 million, according to the singer and musician's first manager, Owen Husney.
The eclectic, influential songwriter and performer behind hits like "Purple Rain" was found dead on Thursday at age 57 in an elevator at his Paisley Park Studios compound in the Minneapolis suburb of Chanhassen. The cause of death was not yet known.
"I do not know of the existence of a will and have no reason to believe that the Decedent executed testamentary documents in any form," Nelson said in her petition for the appointment of a special administrator.
She added that an administrator was needed "because no personal representative has been appointed in Minnesota or elsewhere."
Prince was cremated in a private family ceremony on Friday. Sales of his albums have soared since his death, reaching the top of the Billboard album charts [nL2N17S1QA} (Reporting by Suzannah Gonzales and Alex Dobuzinskis; Editing by Chris Reese and Jonathan Oatis)