After the death of Shabdrung Ngawang Namgyal , Bhutan nominally followed the dual system of government .
Both the Je Khenpo and Druk Desi were under the nominal authority of the Shabdrung , a reincarnation of Ngawang Namgyal .
After the death of Ngawang Namgyal     , Bhutan nominally followed the dual system of government .
Both the Je Khenpo and Druk Desi were under the nominal authority of the Shabdrung , a reincarnation of Ngawang Namgyal .