Trapani Cathedral was built by order of Alfonso the Magnanimous in 1421 and was elevated to a parish in the second half of the fifteenth century. In 1844, when the Diocese of Trapani was created, the church was made its episcopal seat.
Over the following centuries, the building was modified several times and its current appearance dates from the restoration of the eighteenth century by the architect Giovanni Biagio Amico.
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.