Prince’s sister Tyka Nelson is on a mission to ensure that she is left in charge of her brother’s assets following his untimely death. The “Purple Rain” singer died April 21 of causes that remain unclear. He reportedly left no will, leaving those close to him uncertain who will inherit his wealth.

According to TMZ, Nelson has filed legal paperwork asking a judge to consider appointing her “special administrator” of Prince’s estate. This position is chosen by a court when a deceased person has not appointed one in a will. Nelson’s documents claim Prince did not make her or anyone else in his inner circle aware that he had outlined any final wishes. Tyka Nelson is Prince’s only full biological sibling. He also has five half brothers and half sisters. His parents and another half brother and half sister are deceased.

The publication reports that Tyka, who has one son, has asked that Bremer Trust, National Association, be named the official administrator of her brother’s fortune. She claims the bank had a longstanding relationship with Prince in the years leading up to his death and is the best and most obvious choice.

Reports of Prince’s alleged $300 million fortune being divided among his siblings come amid much confusion. As was previously reported, it was believed the Jehovah’s Witnesses — one of the smallest religious faiths in the United States — could inherit the “Little Red Corvette” singer’s money. This speculation was sparked by Prince’s devout following of the religion. Many believed that if he had created a will, he would have left a portion of his assets to the church.

Tyka Nelson, her son President LenNard Laeil Nelson and an unidentified third person were seen retrieving Prince’s ashes on Monday. Prince’s nephew shielded the Grammy winner’s urn from cameras, as well as the elements, with a black leather jacket. It is not known what they plan to do with the ashes.

While no funeral plans have been announced, Prince’s former muse Sheila E. has spoken out about a memorial for the singer held at his Paisley Park estate in Minnesota on April 23. Twenty of Prince’s family members and friends were invited to the mansion to remember his legacy. Outside, fans gathered for a memorial of their own, where family members handed out boxes of Prince memorabilia.