Choghtu Khong Tayiji

Tümengken Choghtu Khong Tayiji, was a noble in Northern Khalkha. He expanded into Amdo to help the Karma Kagyu sect of Tibetan Buddhism but was overthrown by Güshi Khan, who supported the rival Gelug sect. He is also known for writing a famous poem in 1621, which was transcribed on the surface of a rock in 1624, and still exists.