The Brightfather

The Brightfather is a mysterious figure who acts as the head and public face of The Sidonian Republic. He resides atop a large tree in the center of the city of Sidonia. 
It is unknown just how old he is, where he came from, or even really how he came to be in his position. What is known is that he is an extremely potent magic-user, and a faithful follower of The Bright King.
He generally maintains a calm posture, but if one invokes his ire, there are few who could withstand a battle with him. According to Lucien Novelle, he is the wizard spoken of in Helena Aurelianos's spellbook, Kastur, an immortal drow wizard who practiced heavily the school of illusion.
The Brightfather assumedly perished in the devastation of Sidonia.