Fairfield

The flattest and most open province of Roesone is Fairfield, a region of gently rolling plains and scattered farmsteads along the barony's northern border. From the north, Fairfield is an open highway leading into the heart of Roesone, and no less than four major wars with the neighboring barony of Ghoere  have been fought in and around this province. Consequentially, the people of Fairfield are organized into alert, well-trained militias to fight off any Ghoeran invasion. Fairfield contains some of the older settlements of Roesone, since it was still thinly populated even when the rest of eastern Diemed was desolate. There is a longstanding tradition of independence and self-reliance in the province, and even to this day the baron's authority is resented by the common man—even though the Fairfielders understand that the baron is a necessary evil to keep them from being subjugated by the Baron of Ghoere

towns
Near the middle of the province lies the walled town of Fairfield, from which the province takes its name. Fairfield was founded almost 400 years ago as a freestead, and slowly attracted more and more settlers seeking land of their own to farm and freedom from the nobility. The town was something of a bandit's fortress in Daen Roesone's day. Its capture early in the Black Baron's rise to power was a major victory. Roesone and a crew of picked mercenaries stormed the town in the dark of the night, after a turncoat in the town opened the gates to them. The freehold of Casiere on the Ghoeran border is home to almost one hundred people, who farm several miles of land in the area. A detachment of Roesonean scouts is quartered here, and they patrol the nearby lands to provide early warning of any invasion.

daerin isilviere
Daen Roesone awarded the rule of Fairfield to the young nobleman Derian Isilviere, a scion of the Isilviere family who followed his banner. The Isilvieres are a major noble family of Taeghas, but Derian was a fourth son, and joined Roesone's mercenaries when the Black Baron soldiered across Avonlae. The baron's return to Diemed was "in part funded by the Isilvieres, after Derian convinced his father to help bankroll Roesone's soldiers. Fairfield was the Isilvieres' repayment, and Derien's descendant Daerin Isilviere rules it today.
By coincidence, the lines of Derian's older siblings died out, leaving the Roesonean Isilvieres with a very legitimate claim to the family lands in Taeghas. Of course, the Isilvieres in Taeghas aren't very supportive of this claim, and there have been some bitter words exchanged on the subject