Large, square, stone walled castle, centered on Oakenhill on the edge of the upperclass district in Thornfield, and the town square.
The Military foundation of Thornfield (city), some administrative tasks handled here, there’s a chapel. Basic storage of food goods, in case of siege.
The Thornfield (family) has a residence outside the castle.
If/when the Goldenmane (family) takes over, there are also Arcane Machines stored here.