User blog comment:General MGD 109/Who made them?/@comment-3045936-20120107221238/@comment-3045936-20120107223039

I am 80% sure of it too. But that is speculation. That is like saying Lilith the first demon is without questioning stronger than Azazel just cause she is the first one. Like how Michael is stronger than Lucifer. I will not say that Death did or didn't make the reapers. But he has unquestionable authority over them at least. As for deities maybe it will like Ruby's knife something that will never be revealed. Any confirmed facts I have found on deities on supernatural is on the deities page under trivia.