The Burg Liebau is the ruin of a spur castle on a flat rock spur on the right flank of the Elster. The castle was first mentioned in a document in 1327. In the 14th century exchanged Plauen Vogt Heinrich the Elder including the castle with the Wettiners and 1441 the castle was owned by the Dölau, of which the castle from 1500 to 1550 graduated like in Renaissance style was rebuilt.
In 1640 the castle was sacked by Swedish mercenaries and the stair tower was set on fire. The castle remained with its last owner Gottlob Christian von Doelau on Ruppertsgruen and his wife Sophia Christina geb. von der Planitz owned it until 1725, was then owned by Johanna Charlotte von Beust until 1742 and then fell into disrepair.
From 1995 to 1997 security work took place in cooperation with the State Office for Archeology and is now a ground monument .
The castle complex on an approximately triangular plateau measuring 50 by 30 meters probably consisted of a defensive and residential tower , the gate tower and a surrounding wall with battlements , further protected by two section trenches that were approx. 5 meters wide and 2 meters deep. The actual castle ruin has the dimensions of 20 to 25 meters. To the east, the complex was protected by a partially natural 20 to 25 meters wide and 5 to 6 meters deep neck ditch with a drawbridge.
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.