Orchidna

Orchidna was a child, the bastard daughter of Kyprosa Daeior's uncle. She was a member of the original expedition. She was bound to the throne that sits opposite to the gate to the birthplace of magic in the depths of Auroria to replace the fae that was seated there before. A deal was struck by her father making her the new queen of creatures from another dimension (likely demons). It is assumed that this is the reason why she was pulled to the throne when she came near it.

The other members of the expedition left her there, promising to come back with magic that could free her. It is unclear what became of Orchidna in the centuries since then, but there are hints that she is far from being an innocent child by now...

https://www.youtube.com/watch?v=oVH9FPQ5pK8

https://www.youtube.com/watch?v=I8sFFGOJb8M

Whilst she was on the throne she made the Warborn. With them it's assumed she orchestrated the Ezna massacre. When she became dormant her guardian of son Damian freed the Warborn.