Castle Trinity

As far as I know, Castle Trinity is a creation of the author R.A. Salvatore.

History
R.A. Salvatore does not touch very much on the history of Castle Trinity, but it is known that the castle was built a while ago underground to look only like a rocky outcroping in stead of a large castle, to promote secrecy and to repel intruders and curious eyes.

Governing System
The castle is ruled by a triumvirate, or a triangle of power. Each side has three members: three wizards, three clerics and three fighters. In the beginning of R.A. Salvatore's Canticle, Barjin, a cleric, rules over the triumvirate. When Barjin dies, Aballister Bonaduce takes over the triumvirate. Also in the beginning of Canticle, Ragnor is the leader of the fighters, Aballister is the leader of the wizrds and Barjin is the ruler of the clerics and the entire meeting.

Location
Located high in the snowflake mountains, Castle Trinity is shaped to look exactly like a part of the mountain so no one knows that it even exists. Travelers have walked right in front of it and have never noticed. When Aballister builds walls, that fact is diminished.