Sophienholm is a former manor house and exhibition venue located north on the shore of Lake Bagsværd in Lyngby-Taarbæk Municipality in the northern outskirts of Copenhagen, Denmark. The main building was originally a country home built in 1769 by Johan Theodor Holmskiold who named the house after his wife Sophie Holmskjold. Its next owner, Constantin Brun, had it completely rebuilt at the turn of the 19th century into its present appearance, and it became a lively cultural venue during the Danish Golden Age when his wife, the writer and salonist Friederike Brun, played host to many prominent Danish and foreign cultural figures of the time.