Hjortholm In the Middle Ages, the Frederiksdal estate was known as Hjortholm. Hjortholm was first mentioned in records from 1178, when it was listed as one of the properties owned by
Esrum Abbey. In 1201, the estate came under the ownership of
Roskilde Cathedral. In approximately 1250, Hjorholm
manor house was built on the property on the shore of the
Furesø. The manor became a residence and episcopal office for the successive bishops of the
Ancient Diocese of Roskilde.
The Schulin family The town of
Bagsværd was separated from the Frederiksdal estate in 1735, and in 1739 Frederiksdal was put at the disposal of Johan Sigismund Schulin (1694–1750), a close friend of the royal family who had been ennobled by the crown in 1731 and received a number of prominent appointments since Christian VI's ascension to the throne in 1730. He charged royal architect
Niels Eigtved with the design of a summer residence. Schulin's eldest son, Frederik Ludvig Schulin (1747–1781) was only two years old when his father died. The estate was therefore managed by his mother, Catarine Marie Schulin (née von Møsting), who carried out alterations on the building in 1752 and 1753 with the assistance of the architect
Johann Gottfried Rosenberg. In 1771, Frederik married Sophie Hedevig von Warnstedt (1753–1807). The grown-up Frederik Ludvig Schulin has been described as incompetent and financially irresponsible. Within a few years of taking charge of the estate from his mother, he was on the verge of bankruptcy, and had been ordered by the supreme court to pay off his debts. He had one son, Sigismund Ludvig who had been born in 1777. Like his father before him, he was only three years old when he unexpectedly inherited the estate, and so it was managed by his mother Sophie Hedevig until her death in 1807. Sigismund died on New Year's Eve 1836, and the property was inherited by his eldest son, Johan Sigismund (1808–1880). He married Charlotte Zeuthen in 1839 and the couple had 7 children. He was succeeded by his son, Sigismund Ludvig, who died in 1929 without an heir, and so the property passed to his brother Vilhelm Peter's son, Sigismund Lensgreve (1892–1968). Sigismund Lensgreve had married Johanne Amalie Schou in 1920, and upon his death in 1968, their son Johan Sigismund (1921–1992) took over ownership of the estate. The property then passed to Johan Sigismund's wife, Karen Vibeke, after his death in 1992. She and her husband had no children, and she gave ownership over to their relative, Carl Christian Sigismund Ahlefeldt-Laurvig, in 2016. ==Architecture==