Montquintin Castle was probably originally designed to defend the southern border of the counts of Chiny. It was built in the 11th century by order of Louis II, Count of Chiny (born 1025). Over the centuries the castle has undergone many changes. The central part was rebuilt the 18th centuryt by the Bishop of Hontheim, last owner. In 1869 a fire destroyed the castle. The basement includes a vaulted cellar, which is very well preserved.
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.