Firstborn
Birthed by the Entity Asenica, the Firstborn are Entities born as immortals and given land on the planet Legaia to guide the mortals living there. As such, the Firstborn are only incorporeal when their bodies are killed. It is possible that the Firstborn were created to offer suitable bodies for the reformation of the Essences scattered during the Shen Incident. All of the Firstborn were born with Entity status, though the three Essences have shed the Entity status and skillsets with reformation.
High Lord Raderos Thean'Magi of Meronia
High Lady Eren Thean'Magi of Arasil
High Lord Banell Epsolil of Leresen
High Lady Gallyn Trentiros of Darika
High Lord Nalatos Na'Evrah of Venda
High Lord Kiyez Shar'Nah of Kaidriel
High Lord Dryx Za'Dresh of Kaotala
High Lord Thresh Altimerisec of Tesserapta
High Lord Thaos Na'Danashurin of Shesstera
There is another that few consider to be Firstborn born to Shepsada. She had been denied involvement and went about creating a child anyway. This went poorly. The child went on to live solitarilly in Shesstera near the Northern Firstcomers. He is not truely a Firstborn.