Re-playing through Forspoken sadly my completed save is all gone so I had the opportunity to replay through got to one of the locked labyrinths and discovered something very interesting…
If any one could figure out what the red text says that would be great it’s hard to see but it is in Athian. Also looks like a Rheddah soldier mask on a skeleton makes you wonder what happened here…. I’m thinking that each locked labyrinth says something different or has a different symbol on it.
I was looking through the archive entries. And specifically, in the archive entry titled "Remnants of the Rheddig", there was a picture of a tattered war banner.
We don't see the entirety of the banner. But we're able to make out a few details, like the color being red and the animal symbol being some sort of bird (likely an eagle?). At first, I thought this was maybe a war banner of Praenost considering the color being red and Praenost being mentioned in the archive entry. Either that or a banner of Avaolet (who was also mentioned) but Avaolet's colors usually are blue-ish. And the symbol on the banner doesn't match up exactly with the symbols of the Tanta's realms on the Forspoken game map.
Although, I can't exactly make out what Avoalet's symbol is supposed to be due to how my eyesight is. Plus, it could very well be possible that the Tantas' realms used a different symbol on their war banners in the second war with the Rheddig.