St. George's Basilica is the oldest surviving church building within Prague Castle. The basilica was founded by Vratislaus I of Bohemia in 920. It is dedicated to Saint George.
The basilica was substantially enlarged in 973 with the addition of the Benedictine St. George's Abbey. It was rebuilt following a major fire in 1142. The Baroque façade dates from the late 17th century. A Gothic style chapel dedicated to Ludmila of Bohemia holds the tomb of the saint. The shrines of Vratislav and Boleslaus II of Bohemia are also in the basilica. The abbess of this community had the right to crown the Bohemian queens consort.
The building now houses the 19th century Bohemian Art Collection of National Gallery in Prague. It also serves as a concert hall.
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.