The National Archives (Riksarkivet) preserve the non-current records of government ministries and other central offices. Documents from these institutions are brought to the National Archives when they are 25 years old and out of administrative use....
If you have ancestors who lived in Oslo or Aker, chances are good that you can find information about them in Oslo's City Archives. The City Archives' staff can assist you in how to use their resources that are useful for genealogy. The City Archives can...