Lungholm is a manor house and estate located on the island of Lolland in southeastern Denmark.

Lungholm originates in the older estate Olstrupgaarde which is known from 1434 when it was owned by Henning von Hafn.

His descendants owned Olstrupgaarde for several generations but it was in the middle of the 16th century transferred to the Brahe family through marriage.

In 1639 Rosenkrantz merged the two estates and land from the small village of Pugerup into a single manor, naming it Lungholm after his third wife, Lisbeth Lunge.

Lungholm went to the only surviving son, Jørgen Rosenkrantz, but he died just 23 years old during his grund tour in Venice.

Count Christian Ditlev Reventlow, one of the largest landowners in the area, acquired Lungholm in 1823.

After Johanne Lehn's death in 1805, Sønderkarle was passed to her nephew Poul Godske von Bertouch from Søholt.

[1] In 1819, Poul Godske von Bertouch was created friherre under the name Bertouch-Lehn and Sønderkarle was at the same time converted into a barony.

Poul Godske Bertouch-Lehn died in 1831 and his wife and daughter were killed in an accident five years later.

Their son Johan Julian Sophus Ernst Bertouch-Lehn was only two years old when he succeeded his father as baron of Sønderkarle.

These included a new main building and he also constructed new dykes and reclaimed new land following the devastating 1872 Baltic Sea flood.

The crops included wheat, barley, rye, sugar beets, Rapeseed and grass seeds.