Schloss Heiligenberg is a Renaissance-style castle owned by the Fürstenberg family. It is located on a plateau 730 metres above sea level, with views down onto the Bodensee and the Alps. It was first built in the Middle Ages - in 1250 count Berthold of Heiligenberg built a burgh on the site, which was bought in 1277 by count Hugo of Werdenberg. Under the counts of Werdenberg-Heiligenberg, the castle expanded during the late Middle Ages.
Through countess Anna of Werdenberg's marriage to count Friedrich zu Fürstenberg in 1516, the burgh passed to the house of Fürstenberg in 1535 - it is still owned by that family today. Shortly before his death in 1559, Friedrich decided to remodel the castle in the Renaissance style. The building as it is seen today dates to count Joachim (1538–1598), who from 1560 to 1575 rebuilt the late medieval burgh into a 'schloss', with a Renaissance-style courtyard and an extended ballroom wing to the south.
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.