Ivan Fridrich
Ivan Fridrich (1902, Vitebsk Governorate, Russian Empire – 1975, Riga, Latvian SSR) – a сollector of Russian folklore in Latgalia, author of several books. The Institute of Russian Literature in St Petersburg (the Pushkin House) has founded the library stock named in honour of Ivan Fridrich. The stock is based on materials collected by Ivan Fridrich and gifted to the Institute.