Aretha Franklin left no will when she died last week at the age of 76, according to documents filed on Tuesday in a Michigan court, which could result in details of her personal finances being made public.

In documents filed with the Oakland County probate court, Ms. Franklin’s sons — Clarence, Edward and KeCalf Franklin, and Ted White Jr. — listed themselves as “interested parties.” One document, signed by KeCalf Franklin, checked a box indicating that “the decedent died intestate,” or without a will.

The sons also nominated Sabrina Owens, a niece of Ms. Franklin, to be the estate’s personal representative, a role similar to that of an executor.

David Bennett, a lawyer representing Ms. Franklin’s estate, did not respond to requests for comment.