The Nativity of Christ Cathedral (Latvian: Kristus Piedzimšanas pareizticīgo katedrāle, Russian: Христорождественский кафедральный собор), Riga, Latvia was built to a design by Nikolai Chagin and Robert Pflug in a Neo-Byzantine style between 1876 and 1883, with decorations made by the firm of August Volz, during the period when the country was part of the Russian Empire. It is the largest Orthodox cathedral in the Baltic provinces built with the blessing of the Russian Tsar Alexander II on the initiative of local governor-general Pyotr Bagration and bishop Veniamin Karelin. The Nativity of Christ Cathedral is renowned for its icons, some of which were painted by Vasili Vereshchagin. During the First World War German troops occupied Riga and turned its largest Russian Orthodox cathedral into a Lutheran church. In independent Latvia, the Nativity of Christ Cathedral once again became an Orthodox cathedral in 1921. Archbishop Jānis Pommers, a native Latvian, played a key part in the defence of the cathedral, including defence from the Latvian government which was extremely unfriendly to Orthodox Church in the first years of an independent Latvia. In the early 1960s, Soviet authorities closed down the cathedral and converted its building into a planetarium. The cathedral has been restored since Latvia regained independence from the Soviet Union in 1991.
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Riga's Nativity of Christ Cathedral is the biggest Orthodox church in the city. Having served as a planetarium and a restaurant during the Soviet Era, the building has been completely restored as a church and holds regular Orthodox services.
Nativity of Christ Cathedral, as a symbol of architecture and stability, is often visited by the highest representatives of foreign countries, and all those who seek solace and sanctuary.
The founding stone was laid on 3 July 1876 by Riga Bishop Serafim (Protopov). The initial design did not feature a separate belfry but as the Russian Czar Alexander II presented a surprise gift (12 bells) the design was improved with one more dome for bells.
The official opening took place on 28 October 1884. The pre-World War I period saw about one-and-a-half thousand worshipers. The neo-Byzantine style building was the most expensive edifice of that time in Riga, its interior was uniquely rich and of high artistic value. The cathedral was renowned for its outstanding collection of ancient and valuable icons, three iconostasis painted by the brightest pedagogues of St Petersburg Academy of Art and the famous Russian painter Vasily Vereshchagin, the clergymen outfits made by the best St Petersburg seamstresses, and Byzantine-style frescoes with Orthodox Christian ornamentation.
Although the cathedral had survived both world wars, in the early 1960s, Soviet authorities closed the cathedral, sawn down the crucifixes, and re-melted the bells, and converted it into a planetarium, called the Republic House of Knowledge.
The restoration began in the late 1990s with, and the iconostasis was consecrated by Archbishop Alexander on 6 May 2000. The renovation is still ongoing, financed by public donations through the project 'Svet'.