The Bentwood royal palace is the residence of the royal family of Bentwood, which at the time the series is set consists of King Lorenzo I and Queen Bunny.
The palace is much grander and more magnificent than Dreamland Castle, just like how all of Bentwood is superior to Dreamland. Even the dungeons are mor luxurious, having benches covered in soft fabric, and the garage of the castle already looks like a large castle.
Dungeon
Garage