Norzang (1403–1466), in full Norbu Zangpo (Tibetan: ཎོར་བུ་བཟང་པོ, Wylie: Nor bu bzang po), was the founder of the power of the Rinpungpa Dynasty in Central Tibet.
Norzang was the son of Namkha Gyalpo, the chief of the Rinpung fief in Tsang (West Central Tibet).
[3] In 1434 the old Chenga himself died and the Phagmodrupa were wrecked by a violent internal conflict when Drakpa Jungne's father Sangye Gyaltsen tried to secure power at the expense of his own son.
The disturbances enabled the Rinpungpa to take control over the strategic town Shigatse in Tsang in 1435 (or, according to recent research, in 1446 when there was a Phagmodrupa interregnum [4]).
In spite of the violent expansion of Norzang's power, he continued to pay formal homage to the Phagmodrupa monarchs Drakpa Jungne (1432–45) and Kunga Lekpa (1448–81).