He was 35th Dga' ldan Khri pa. It was his idea to build the Potala. Samten Karmay, A Most Pleasing Symphony, an Unknown Biography of the Fifth Dalai Lama, contained in: Samten G. Karmay, The Arrow and the Spindle (Vol. 2): Studies in History, Myths, Rituals and Beliefs in Tibet, Mandala Publications (Kathmandu 2005), pp. 95-108, at pp. 97-98.
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Rigs lam thor bu'i rnam gzhag blo gsal ngang mo 'gug pa'i legs bshad padmo'i mtsho chen.