>>532147954
https://genshin-impact.fandom.com/wiki/Chamber_of_Deliberation
https://genshin-impact.fandom.com/wiki/Thirteen_Sovereign_Lords
The IDs come from readables you can find in the Ancient Sacred Mountain. They give you a bit of exposition on the structure of the dragon society but I don't blame you for not reading them, they're boring as fuck.
Lianca's lore comes from the item descriptions. She was the founder of the Flower-Feather clan who was raised by one of the Dragonlords (CL-08).