Dashi-Dorzho Itigilov (1852–1927) was a Buryat

Buryats

The Buryats or Buriyads , numbering approximately 436,000, are the largest ethnic minority group in Siberia and are mainly concentrated in their homeland, the Buryat Republic, a federal subject of Russia...

 Buddhist lama

Lama

Lama is a title for a Tibetan teacher of the Dharma. The name is similar to the Sanskrit term guru .Historically, the term was used for venerated spiritual masters or heads of monasteries...

 of the Tibetan Buddhist tradition, best known for the lifelike state of his body, which is not subject to macroscopic decay

Decomposition

Decomposition is the process by which organic material is broken down into simpler forms of matter. The process is essential for recycling the finite matter that occupies physical space in the biome. Bodies of living organisms begin to decompose shortly after death...

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Itigilov was born in 1852 and began his religious education at the age of 16. He studied at the Anninsky Datsan (a Buddhist university in Buryatia, of which only ruins remain), earning diplomas in medicine and philosophy.