Thang Tong Gyalpo
Tibetan lama
Thangtong Gyalpo (Tibetan: ཐང་སྟོང་རྒྱལ་པོ་, Wylie: thang stong rgyal po) (1385 CE–1464 CE or 1361 CE–1485 CE), is also known as Chakzampa, the "Iron Bridge Maker" (Wylie: lcags zam pa), Tsöndrü Zangpo "Excellent Persistence" (Wylie: brtson 'grus bzang po), and the King of the Empty Plain. He was also known by a variation of this name, Madman of the Empty Valley. He was a great Buddhist adept, a Chöd master, yogi, physician, blacksmith, architect, and a pioneering civil engineer.
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