. . "fortress" . . . . . "Akershus Prison" . . . . . . . "namesake" . "Akershus" . . . "Akerhus Fortress" . . . . . . . "Akershus Castle" . . . . . . . . . . "1290s" . "Akershus fortress" . . . . . . "Akershus Fortress" . "Akershus_Fortress" . . . "Akershus slot" . . . . . . . . . "Akershus Fortress" . . . . . .