the Black Erik Eymundsson Raknehaugen Rakni's Mound (Raknehaugen) has been estimated to date to around 550 AD (possibly 552 AD). It is located in the very heart of Romerike. Raknehaugen is a burial mound (gravhaug) from the Old Norse word haugr meaning barrow or mound. It is assumed that it is named after a king with the name Rakni. At 77 metres in diameter and more than 15 metres high, Raknehaugen at Ullensaker is the largest barrow in Northern Europe. References Other sources De Geer, Ebba Hult Raknehaugen (A.W. Bråggers. 1938) Grieg, Sigurd Raknehaugen (Viking 5 – Norsk Arkeologisk Selskap, Oslo. 1941) Skre, Dagfinn Raknehaugen - en empirisk loftsrydning (Viking 60 – Norsk Arkeologisk Selskap, Oslo. 1997) External links Raknehaugen Romerikes Blad (local newspaper) Raknehaugen Image Districts of Viken Petty kingdoms of Norway