In the 18th century, the region north of Copenhagen became popular for its scenic views and opportunities for recreation with the surrounding meadows, woods and lakes, with many summer residences being built.

In 1746, Joost and Gysbert van Hemert leased a parcel of land on the site from Frederiksdal's owner and used it for the construction of a country house.

It was possibly expanded with more land in 1752 since a new leasing document (gæstebrev) was issued by the prime minister's widow that year.

It had until then simply been referred to as Frederiksdal Lyststed (Frederikdal Country House) and presented it to his foster daughter Amalie Raben.

[1] In 2004, Tusculum was acquired for DKK 45 million by real estate agents Peter Norvig and Hanne Nørrisgaard.