For 10 points, name this leader of the Buddhist community in Tibet.
During a Russian expedition, Baron Mannerheim gifted one holder of this office with his own revolver. The third holder of this title received it from Altan Khan, whose grandson was perhaps not coincidentally selected to be the next holder of this title. The tenth through twelfth men with this title were chosen with the Golden Urn as prescribed by an emperor of China, and Thubten Gyatso's embalmed head turned to indicate the location of his reincarnation in this office. Empty robes in Potala Palace represent the current holder of this title. For 10 points, name this leader of the Buddhist community in Tibet.
During a Russian expedition, Baron Mannerheim gifted one holder of this office with his own revolver.
Dalai Lama