Langdarma

Darma U Dum Tsen
དར་མ་འུ་དུམ་བཙན
Tsenpo
King of Tibet
Reign841 – 842
PredecessorTritsuk Detsen
SuccessorEra of Fragmentation
LönchenWe Gyaltore Taknye
BornDarma
After 790s?
Died842
Burial
Trülgyel Mausoleum, Valley of the Kings
SpouseManamza
Tsépongza Tsen Mopen
IssueTride Yumten
Namde Ösung
Names
Tri Darma U Dum Tsen (དར་མ་འུ་དུམ་བཙན་)
DynastyYarlung
FatherTridé Songtsen
MotherDroza Lhagyel Mangmojé
ReligionBön
Langdarma
Tibetan name
Tibetan གླང་དར་མ།
འུ་དུམ་བཙན་པོ
Transcriptions
Wylieglang dar ma
'u dum btsan po
Lhasa IPA[laŋtaːma] /
[udum tsɛ̃po]

Darma U Dum Tsen (Tibetan: དར་མ་འུ་དུམ་བཙན, Wylie: dar ma 'u dum btsan), better known as Langdarma (Tibetan: གླང་དར་མ།, Wylie: glang dar ma, THL: Lang Darma, lit. "Mature Bull" or "Darma the Bull"), was the last king of the Tibetan Empire who in 838 killed his brother, Tritsuk Detsen, then reigned from 841 until his assassination in 842. His reign led to the dissolution of the Tibetan Empire, which had extended beyond the Tibetan Plateau to include the Silk Roads with the Tibetan manuscript center at Sachu (Dunhuang), and neighbouring regions in China, Afghanistan, and India. He was assassinated by a Buddhist monk Lhalung Pelgyi Dorje.