He has siblings.
Actually, the claimant says he is the offspring of Prince’s father. I suppose that makes him some sort of sibling in a twisted legal sense...and the article mentions Minnesota law...about which I know nothing.
There’s probably some way that such a claim will eventually be settled for a token amount and even .1% of Prince’s estate could be a substantial sum; but as far as I know (and that is not probative in any way, but I *DO* have significant CA estate experience) siblings have no inherent claim on a deceased’s estate, nor do parents. It may be customary to give your estate or part of same to your folks but I don’t think it is mandated by law. There is also some aspect to the idea that if Prince’s father’s estate was settled 15 years ago, there’s not a chance in hell that a claimant coming forward has the slightest claim on said estate. Again, I have zero familiarity with Minn law.