In 1852, the first investigations took place of the Borre mound cemetery (Norwegian: Borrehaugene from the Old Norse word haugr meaning mound) in Horten, Vestfold.
Franz Nicolay | William Nicolay | Nicolay Nicolaysen | François de Nicolay |
In 1867 Antiquarian Nicolay Nicolaysen mapped one of the grave-fields around the former town and excavated 79 grave mounds.