The Hall of State Throne room - "Hall of State" - Rikssalen in 2015 The Hall of State is in the west half of the southern row of the palace and is two stories high (first and second floor). It was introduced for the Riksdag of 1755. The hall was designed by Hårleman who modified Tessin's plans. The Silver Throne of Queen Christina is placed in the Hall. The main entrance of the Hall is in the South Portal (or Arch).