St Ignatius of Antioch seems to make a distinction between Archons and Angels.
* In Symrn. 6.1 he mentions the glory of angels and archontes.
*In Trall. 5.1 he mentions the place of angels and the gathering of archontikas.
*In Diognetus 7.2 he mentions that Christ did not send an angel or an archon into the world.
What do we make of this? I don’t know. It’s just interesting that Ignatius seems to posit a category beside that of angels and demons.