Silver Eagle Duchy, City of the Undying Spark, the Ducal Palace.
As one of the three client states of the Valla Empire, the Silver Eagle Duke Horan Faust never went out of line, constantly tip-toeing on eggshells as he followed the unquestionable orders of the emperor.
He knew that governing over the Silver Eagle Duchy was the extent of his power and he didn't wish for more, but he also knew of the fear the Valla royal family had towards him.
In particular, after Valla Empire waged war against the Grand Duchy of Rominos and subsequently faced a crushing defeat, the resentment those royals had towards the dukes of the empire only increased. If it weren't for the fact that all three dukes were descendants of the empire's founding fathers and had some form of protection from the law, the royal family would have already demoted them to your average noble.