Ja Lama (also known as "Dambijantsan", or "Dambija",, (1862-1922)) was an adventurer of unknown birth and background who posed as a Buddhist lama, though it is not clear whether he actually was one. He claimed to be a grandson and later the reincarnation of Amarsanaa, the Khoit-Oirat prince who led the Dzungar Khanate to its extermination in 1757. He played an important role in the struggle for Mongolia's independence. Wikipedia
The definitive Wikipedia entry for Ja Lama. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Ja_Lama