Uspenski Cathedral is an Eastern Orthodox cathedral in Helsinki, Finland, and main cathedral of the Orthodox Church of Finland, dedicated to the Dormition of the Theotokos. Its name comes from the Old Church Slavonic word uspenie, which denotes the Dormition. Designed by the Russian architect Aleksey Gornostayev. The cathedral was built after his death in 1862–1868.
The crypt chapel of the cathedral is named after the holy Alexander Hotovitzky, who served as vicar of the Orthodox parish of Helsinki 1914–1917.
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