The Tseten Zhabdrung incarnation line is based in Amdo. Since the late seventeenth century, the Tseten Zhabdrung incarnations shared the throne of the Six Garwaka monasteries with the lineage of Tseten Abbots, while Tseten Zhabdrung also had his own monastic seat at Tak Monastery. The mother monastery of the Six Garwaka monasteries is a Geluk monastery known as Tseten. The Sixth Tseten Zhabdrung, Jigme Rigpai Lodro was one of the great Tibetan polymaths of the twentieth century, writing extensively on Tibetan history, language, astronomy and Buddhism.