The Ferdiad Cycle
The Watcher (also called Sentinel of the North) is propably the most important figure in Aenoria next to the High King. He is the ruler of the northern provinces and commands the legendary city of Caern Môrn, thus also acting as the Thane of Dùn Èiden.
It is a title which the king must give choosingly, as the Watcher must at the same time be absolutely loyal to the crown and also keep the northern provinces content. A difficult task, as the northerners are notoriously suspicious of southern influences and thusly the Watcher has always come from northern stock.
The current Watcher is Robert magh Connacht – a reputably good and honest man with a talent for keeping the northern thanes in check.