Buton Rinchen Drub

Shalu was the first of the major monasteries to be built by noble families of the Tsang dynasty during Tibet's great revival of Buddhism, and was an important center of the Sakya tradition.

Buton was born in 1290, "to a family associated with a monastery named Sheme Gomne (shad smad sgom gnas) in the Tropu (khro phu) area of Tsang ... [his] father was a prominent Nyingma Lama named Drakton Gyeltsen Pelzang (brag ston rgyal btshan dpal bzang, d.u.).

He wrote the famous book, the History of Buddhism in India and Tibet at Shalu which many Tibetan scholars utilize in their study today.

The purpose of his works were not to cultivate paranormal magical abilities but to attain philosophical enlightenment, a belief that all earthly phenonoma are a state of the mind.

Panchen Sönam Drakpa (1478-1554), the fifteenth abbot of Ganden monastery, became known as an incarnation of the great lama and historian, Bütön Rinchen Drupa.