It takes its name after Søborg Castle, which was destroyed during the Count's Feud and is now left as a ruin.

It stood on a small peninsula on the south side of Søborg Lake and may have been built by Eskil.

In 1950, Frederick VII participated in archeological excavations of Søborg Castle.

[2] Søborg remained the main town of Holbo Herred until the beginning of the 19th century.

In 1872, Count C. E. Frijs purchased the area and commissioned the engineer Peter Feilberg to complete the project.

[5] A pumping station at Søborggaard currently drains Søborg Lake at a rate of 75,000 litres per day.