Nerath is the human empire founded by humans that worshiped the Worldsmith, and is the center for the Magisterium. Though many parts of western Crucible still technically hold fealty to Nerath, in reality it is all but powerless. Nerath is located just to the north of Arandor, through Courtland’s Gap.
Nerath is ruled by a hereditary king with an advisory parliament that, in practice, has kept the politics of Nerath in eternal gridlock for over a hundred years, as the various noble houses each vie for the throne. Each time one house truly gains an advantage, a coalition of other houses is always there to tear it down.
The Magisterium prefers to stay out of the political infighting, but has the loyalty of all of the houses through their religion.