User blog comment:B214/Question and Answers 6/@comment-217.115.65.9-20190125170955/@comment-37165251-20190125195623

We know the Devil that are the 72 Pillar were created by Lucifer using Lilith. We don´t know for sure about the other Devils for sure. We know next to nothing about the four Original Maou. What we know that they, different to normal Devil, seems to have multiple Wings which is in common with Angels and Fallen Angels.

So it could be that they were former Angels that were fallen after the biblical rebellion against God and than met Lilith in the Underworld. Maybe they made a ritual to abandon their light Powers (which Fallen Angels still have after their fall) and created the Demonic Power.