About Namri Songtsen

Namri Songtsen, also known as "Namri Löntsen" (570?–618?/629) was, according to tradition, the 32nd King of Tibet of the Yarlung Dynasty, which until his reign ruled only the Yarlung Valley. He expanded his kingdom to rule the central part of the Tibetan Plateau. His actions were decisive in the setting up of the Tibetan Empire, to which he can be named co-founder with his son, Songtsen Gampo.
Namri Songtsen, also known as "Namri Löntsen" (570?–618?/629) was, according to tradition, the 32nd King of Tibet of the Yarlung Dynasty, which until his reign ruled only the Yarlung Valley. He expanded his kingdom to rule the central part of the Tibetan Plateau. His actions were decisive in the setting up of the Tibetan Empire, to which he can be named co-founder with his son, Songtsen Gampo.
Lama Teacher Gotsangpa Gonpo Dorje

The most prominent Tibetan kings

The Tibetan kingdom was centered on the Tibetan Plateau, formed as a result of imperial expansion under the Yarlung dynasty heralded by its 33rd king, Songtsen Gampo, in the 7th century. The empire further expanded under the 38th king, Trisong Detsen. The 821–823 treaty concluded between the Tibetan Empire and the Tang dynasty delineated the former as being in possession of an area larger than the Tibetan Plateau, stretching east to Chang'an, west beyond .