One of only a handful of citadels to have been built in the modern ear. It was built in great secrecy by officers from The Society of the Bond on the orders of the king for his son Prince Kant Carnhold. It is a symbol of the power of the crown and of the society. The idea of building such structures was unthinkable just a hundred years ago. Newhall is as large of the citadel's built by the ancients not because it needs to be (there are far fewer people since the decline in fertility rates) but because it is not just a building but a symbol of power. The prince needs all the symbols he can get as he rules over local Houses that regard him as a stranger.
He is known to be starved of entertainment and will pay handsomely for novelty and amusement of any variety. He has tried to create a hedonistic atmosphere, introducing the locals to music events and cocktails.
While several floors of the citadel maintain this party atmosphere, the upper floors are the administrative centre of the principality and as such are filled with locals come to petition the prince over some matter of law of a request. The ques block the corridors as the prince dislikes these duties and sees them as an annoyance. The people wait dressed in the conservative local style of hooded cloaks and face coverings in stark contrast to the revellers on the floors below. The prince's massive energy expenditure on the floors below means that he keeps lighting on the upper floors to a minimum, often just a faint red glow illuminates a whole wide corridors of queuing locals. This not only saves on energy costs but also might put people off making requests if they have to wait in such conditions to be seen by the prince.
The upper floors of the citadel are only accessed by the princes chosen few - courtiers and advisors, wealthy merchants and travelling entertainers of note. There are endless rumours about what goes on up there. People are said to have been permanently mentally scarred by the acts of debauchery they have witnessed up there.