Overview
Mutik Tsenpo or Murug Tsenpo is sometimes considered to have been one of the emperors of Tibet. This is, however, very questionable. Moreover, the whole period between the reigns of Trisong Detsen and Sadnalegs is very unclear, with several conflicting reports.
Trisong Detsen is said to have had four sons: Mutri Tsenpo, Muné Tsenpo, Mutik Tsenpo, and Sadnalegs. The eldest son, Mutri Tsenpo, died early.
Muné Tsenpo is said to have taken power when his father, Trisong Detsen retired (probably around 797 CE). After a short reign, Muné Tsenpo, was supposedly poisoned on the orders of his mother, Tsephongsa, who was jealous of his beautiful young wife, Queen Phoyongsa. After his death, Mutik Tsenpo was next in line to the throne.
Several sources, however, claim that Mutik Tsenpo murdered a senior minister and was exiled to Lhodak Kharchu (lHo-brag or Lhodrag), near the Bhutanese border in the south, so the throne was taken by Sadnalegs instead.
From Wikipedia (CC BY-SA 4.0).