Following the death of the Kunkhyen Pema Karpo in 1592, two candidates were claimed as his reincarnation: Pagsam Wangpo (b. 1593), the natural son of the prince of Chongye, and Ngawang Namgyal (b.1594), the son of Mipham Chögyal, 17th prince-abbot of Ralung. The arbitrage between the parties of the two candidates was long and complex, involving most of the principal religious and political dignitaries of Tibet at that time. Lhatsewa Ngawang Zangpo (lha rtse ba ngag dbang bzang po, 1546-1615), an influential follower of Gyalwang Drukpa Padma Karpo, and most of the monks of Tashi Thongmon and Druk Sangag Chöling monasteries, favoured Lhatsewa's nephew, Pagsam Wangpo; while the Gya clan of Ralung Monastery, the traditional seat of the Drukpa school, and their supporters laid claim on behalf of Ngawang Namgyal. The long dispute ultimately led to a decision by the strongman of Tibet, Karma Phuntsok Namgyal, who chose the Chonggye candidate Pagsam Wangpo. This cemented the split of the central branch of the Drukpa school into Northern and Southern branches, and the flight of the opposing candidate to the south of the Himalayas where he established an independent Drukpa state now known as Bhutan.