Oslo kongsgård Kastell

Oslo kongsgård Kastell, situated in Oslo, Norway, is described as a ruin, indicating that its present condition is classified as a ruin. The castle's condition remains that of a ruin. Its location within the city of Oslo confirms that the ruin lies within Norway. The ruin is identified by the name Oslo kongsgård Kastell. The ruin remains located in Oslo, Norway, confirming its status as a ruin.