Building the new chapel with the same proportions as the old one and making it fit within the walls of the old chapel, with a retained high ceiling inside the walls of the former northeast tower (now the northeast corner of the palace), proved difficult for Tessin if he was to be able to adhere to the austere Baroque style where all the windows aught to be the same size, and placed in precise rows despite what rooms were behind them. To achieve this, Tessin added a mezzanine floor with smaller square windows just above the lower row of windows. These smaller windows now encircles the whole building, a remnant of the first castle chapel. After the fire, when Tessin could make more substantial alterations, the Royal Chapel and the Hall of State were placed in the southern row instead, and the furniture and inventories, such as benches, household silver and decorations are to some extent preserved in the present-day Royal Chapel.