History
This belt had no king, and any account that gives it one is wrong. Authority here was monastic and collegiate: after Tawang Monastery was founded in 1680–81 the valleys it reached were administered as a monastic estate, with revenue collected and disputes settled by a council of six known as the Trukdri, whose members held the title Kenpo, sitting alongside two monk officials called Nyetsangs and two Dzongpen. On the southern shelf, below the temperate forest, small chiefships of the Miji and Aka held their own ground, and the Sherdukpen went down to the Assam plains every winter to trade. The periodisation follows from that. The medieval period begins in the seventeenth century, when Gelugpa institutions and direct authority from Lhasa were established here, rather than with anything happening in the Indian plains; and the modern period begins in 1826, when the Treaty of Yandabo brought Assam under British rule and put a new kind of state at the foot of these valleys. Even then the belt lay beyond the Inner Line and was never administered as ordinary British territory. The narrative here stops in 1947.
Periodisation is regional, not national — the medieval period does not begin in the same century here as it does elsewhere in India.
Ancientprehistory – c. 1300 CE
Tibetan sources call the country south of the Himalayan crest Mon, and the people of it Monpa. A polity called Lhomon or Monyul is spoken of as having existed between roughly 500 BCE and 600 CE, centred in what is now Bhutan, but this belongs to tradition and to later chronicle rather than to dated record, and no archaeology from these valleys confirms it. What is physically present is older building: ruins at Bhalukpong on the foothill shelf assigned to the tenth to twelfth centuries, and the Lhagyala Gompa at Morshing, attributed to a figure remembered as the Kachen Lama and traditionally placed very early. From the eleventh century Nyingma and Kagyu lineages were established in the valleys. Everything about the region in this period is a question of what came over the passes, because nothing came up from the plains.
Medievalc. 1300 – 1826
From the fourteenth century the Mon country came under steadily heavier Tibetan influence, and in the seventeenth century that became direct authority from Lhasa. The decisive event is the founding of Tawang Monastery in 1680–81 by Merak Lama Lodre Gyatso at the direction of the fifth Dalai Lama. What was established was not a diocese but an estate: the monastery collected revenue from the valleys, its council of six settled disputes, and the two Dzongpen and two Nyetsangs formed the rest of the administration. Two years after its founding a Monpa child was born at Urgelling below Tawang who would be recognised as the sixth Dalai Lama - the one instance of this small belt supplying the head of the Tibetan Buddhist world. On the southern shelf, where the monastery's reach ended, Miji and Aka chiefships held the forest and the Sherdukpen moved down to Doimara each winter to trade for rice. Dirang Dzong, built in the seventeenth century, is the surviving physical form of that administration.
Modern1826 – 1947
The change came from below rather than from above. The Treaty of Yandabo in 1826 transferred Assam to British rule, and for the first time the plain at the foot of these valleys was held by a state with surveyors, a revenue system and an appetite for defining frontiers. But it did not come up the hill. The Bengal Eastern Frontier Regulation of 1873 drew an Inner Line beyond which British subjects could not pass without a permit, and the belt stayed outside ordinary administration - toured occasionally by officers, never settled, never assessed. The Simla Convention of 1913–14 saw a boundary alignment negotiated between British and Tibetan representatives, and in 1919 the frontier country north of Assam was constituted as the Balipara Frontier Tract with its headquarters at Charduar, down in the plains; in 1946 this part of it became the Sela Sub-Agency, still administered from Assam. Through the whole period the working authority in the valleys remained the monastery and its council. Almost nothing about daily life here - the crop, the calendar, the paper, the courts of first instance - was altered by the colonial century.
Rulers and commanders
The fifth Dalai Lama, Ngawang Lobsang Gyatso Dalai Lama Ruler 1617–1682
Ordered the founding of Tawang Monastery and directed the people of the area to assist it. The tradition that he set its extent by giving the founder a ball of yarn, the length of which was to mark the limit of the monastery, is how the foundation is remembered locally.
Seat: Lhasa
Merak Lama Lodre Gyatso Lama, founder of Tawang Monastery Founder 1680–1681 (foundation)
Founded Galden Namgye Lhatse at Tawang in 1680–81 and established the Gelugpa institution that became the administrative as well as the religious authority of the valleys. The monastery is three storeys high within a compound wall of some 282 metres, with sixty-five residential buildings and a library of Kangyur and Tengyur manuscripts.
Seat: Tawang
Tsangyang Gyatso, the sixth Dalai Lama Dalai Lama Ruler 1683–1706
Born at Urgelling below Tawang on 1 March 1683 to a Monpa mother, recognised and enthroned on 8 December 1697, deposed and disappeared in November 1706. He is the only figure from these valleys to have held the highest office in the Tibetan Buddhist world, and his short love poems are still sung across it.
Seat: born at Urgelling, near Tawang; enthroned at Lhasa
The Trukdri Council of six ministers, each holding the title Kenpo Administrator from the late 17th century to 1947
The actual government of the Tawang valleys, and the reason this belt has no king list. A council of six collected the monastic estate's revenue, heard disputes and dealt with the villages. Authority here was collegiate and clerical rather than dynastic, and it outlasted every change of overlord above it.
Seat: Tawang
The Nyetsangs and the Dzongpen Two monk officials and two lay administrators Administrator from the late 17th century to 1947
The rest of the working administration alongside the Trukdri: two Nyetsangs, monk officials, and two Dzongpen holding the fortified administrative sites. Dirang Dzong, built in the seventeenth century, is the surviving example of what a Dzongpen held.
Seat: Tawang and the dzongs
The Kachen Lama Lama Founder early, not securely dated
Credited in local tradition with building the Lhagyala Gompa at Morshing, held to be among the earliest Buddhist foundations in this belt. The attribution and its dating are traditional and are given here as tradition.
Seat: Morshing
The Miji and Aka chiefs of the foothill shelf Chiefs Ruler to the late 19th century
Small chiefships outside the monastery's reach, holding the forest shelf between the high valleys and the Assam plain and controlling the routes through it. They were the belt's southern authority, and they were the part of it the colonial state actually collided with.
Seat: the Kameng foothills