Regesta Norvegica is a chronological inventory of all known documents relating to the history of Norway during the Middle Ages.
[Gustav Storm was at that time a professor of history at the Royal Frederick University in Christiania.
His area of focus was the research of Scandinavian history and literature of the Middle Ages.
In 1991 this institute was integrated as a separate department of the National Archives of Norway (Riksarkivet).
When completed the series is expected to cover the whole medieval period of Norwegian history.