Castle Ungebroch

 is the seat of King Bertrand Dwendal, located in Rexxentrum.

Description
It is a dark stone gothic mass, an awe-inspiring citadel of dizzying size. The central pentagonal stronghold rises up like an intricate jagged monolith, symbolizing the Empire’s power. Numerous pointed battlements and spires surround its towers, with intricate elevated walkways and tall arched windows of stained glass. The central castle curtain wall extends in four directions into the surrounding quadrants that resemble their own separate strongholds, all attached to the main central castle.

The Throne Room is accessed through a large set of double doors carved from a deep red wood, each bearing the crest of the Dwendalian Empire, the owl and wheat over the crown symbol. Inside the enormous chamber, the ceiling ramps up towards the back where extremely tall back walls bear numerous red banners that hang nearly 40 to 50 feet from the apex. The back center of the chamber climbs via stair to multiple small platforms containing high-backed chairs that face inward toward the pinnacle of the rising stairs, where a wide platform holds an incredibly tall throne.

Trivia

 * "Ungebroch", the name of King Dwendal's castle, is close to the German word for "unbroken", which Matt stated to be the case.