Penchen Sönam Drakpa (1478-1554 CE) in 1535 succeeded Gendün Gyatso (1476–1541) on the Throne of Drepung, both of them being major figures in the history of the Geluk tradition. By the time Sönam Drakpa was appointed to the Throne of Drepung (Drepung Tri), he was already a famous Geluk master. He had already occupied the Throne of Ganden (Ganden Tri) and was considered the most prolific and important Geluk thinker of his time. His successor was none other than Sönam Gyatso (1543-1588 CE), the lama who would receive the official title of the Third Dalai Lama (Talé Lama Kutreng Sumpa).