Månstorp was an old manor, Mogenstrup. Its first known owner belonged to the Danish family Hack. Later it was owned by the family Bille, notably Eske Bille who furnished Månstorp with all the luxury of the time. The main building was surrounded by a circular wall and moat. As part of the Scanian compensation estates for the island of Bornholm it passed from the Danish to the Swedish Crown. The castle was given to the Governor General of Scania, Lord High Admiral Gustav Otto Stenbock but later served as the colonel's residence.
During the war from 1675-1679 the castle was occupied by the Swedes and destroyed in 1678. The castle was never reconstructed following its destruction, tumbling down even more to become the ruin it is today.
References:House of the Blackheads (Melngalvju nams) is a building situated in the old town of Riga. The original building was erected during the first third of the 14th century for the Brotherhood of Blackheads, a guild for unmarried German merchants in Riga. Major works were done in the years 1580 and 1886, adding most of the ornaments.
The structure was bombed to a ruin by the Germans June 28, 1941 and the remains demolished by the Soviets in 1948. The current reconstruction was erected from 1995 to 1999. Today the House of Blackheads serves as a museum and sometimes concert hall.