A gallery grave is a passageway built of boulders, covered by an earthen mound. Enormous stones encircle the mound. For hundreds of years up to approx. 3,000 BC gallery graves were used as burial sites.

While Crown Prince Frederik (later Frederik V) was doing landscaping work in the grounds of his castle in Jægerspris in 1744, he came across one of these gallery graves.

The Crown Prince presumed the grave to date back to the days of Viking kings Gorm the Old and Harald Bluetooth and erected a monument saying:
This grave by pious pagan ancestors having been built over 800 years past for the placement of the earthly remains of 4 souls and covered with mighty stones was in June 1744 most carefully opened and commemorated by this stone at the hand of the most Highborn Prince Frederik, Heir to the Realm and favour of his forbears, hope, honour and pride of the people.

The grave was in fact more than 3,000 years older than this.

Julianehøj
Some 30 years later another gallery grave was discovered on the edge of the forest, north west of Jægerspris castle. It was found under a burial mound known locally as Monses Mound or Weaver's Mound.

This mound was made into a monument to Queen Dowager Juliane Marie (1729-1796). Sculptor Johannes Wiedewelt created an entrance portal in Norwegian marble with the inscription:

JULIANE'S BURIAL MOUND – TO THE MEMORY OF A BELOVED MOTHER IS DEDICATED THIS ANCIENT MEMORIAL FOUND IN THE YEAR MDCCLXXVI BY CROWN PRINCE FRIDERICH.

You will find Julianehøj approx. 500 yards after Jægerspris castle on the road to Kulhuse.

Folders showing walking routes in the forests in Jægerspris and the whereabouts of gallery graves are available at the Frederikssund Tourist Information Centre.