History
This region has two political histories running in parallel on either side of the Great Himalayan crest, and they do not share a periodisation. On the Sutlej side, Kinnaur's medieval period is the slow consolidation of Thakur chiefships into the Rajput state of Bushahr, and its modern period begins in 1815, when the Gurkha occupation ended and a British sanad restored the raja as a protected ruler. Behind the crest, Spiti's medieval period begins around the middle of the tenth century with the partition of the Ngari Khorsum kingdom of western Tibet, and its modern period begins in 1846, when it was detached from Ladakh and attached to a British district. Neither half was ever a centre of power. Kinnaur was the upper end of a state seated far downriver; Spiti was governed for most of its recorded history by a hereditary local office, the nono, answering to whichever larger power in Leh, Kullu or Lahore was strong enough that decade. What held the valleys together was not a court but a monastic economy and the trade over the passes, and both of those ran on their own calendar.
Periodisation is regional, not national — the medieval period does not begin in the same century here as it does elsewhere in India.
Ancientc. 1st millennium BCE – c. 900 CE
There is very little securely documented here before the tenth century. Sanskrit literature names the Kinnaras as a people of the mountains, and Kinnaur's own name is usually derived from that, but this is a literary and traditional association rather than a record of any polity. What can be said is structural: the country behind the crest lay within the cultural orbit of Zhangzhung in western Tibet until the middle of the seventh century, and then within the Tibetan empire that absorbed Zhangzhung and pushed its administration and, later, its Buddhism along these valleys. The empire's collapse in the middle of the ninth century is the event that matters most, because the fragments it left behind in western Tibet became the kingdoms that built the monasteries still standing in Spiti. On the Sutlej side, the gorge villages were organised as small chiefships under Thakurs, and no imperial claim from the plains is supported by evidence on the ground.
Medievalc. 950 – 1815
The tenth-century Buddhist revival in western Tibet is the single most consequential thing that happened to the far side of this region. Yeshe-O, king of Guge, sent students to Kashmir to be trained as translators, and the best of them, Rinchen Zangpo, came back to build and endow temples across the western Himalaya. Tabo was founded in 996 and has been in continuous use ever since, which makes it the oldest working Buddhist foundation in India. On the Sutlej side, the Thakur of Kamru consolidated neighbouring chiefships into the state of Bushahr, though Kinnaur remained loosely held, described in its own tradition as sat khund, seven parts, with Tibetan influence coming and going along the trade route. Spiti stayed a dependency: strongly held from Leh when Ladakh was strong, autonomous under its own nono when Ladakh was weak, raided from Kullu when neither was. The Tibet-Ladakh-Mughal war and the settlement that ended it fixed the frontier arrangements that governed trade over these passes into the nineteenth century.
Modern1815 – 1947
The two halves entered the colonial system a generation apart and on different terms. Bushahr came in first: Gurkha forces under Amar Singh Thapa were defeated in April 1815, and a sanad that November restored Raja Mahendra Singh as a protected ruler, making Bushahr the largest of the Simla Hill States. Spiti came in second, transferred from the Lahore Durbar's territories in 1846 and attached to Kangra district, with the hereditary wazir left in place to run it. In both halves the colonial state's real footprint was the demand for begar - unpaid porterage and labour owed to travelling officials - which in a country with no wheeled transport meant that every household on a route owed days of carrying every year. That demand, together with reet, the customary payment on marriage, is what politics here was actually about, and the movements of the 1930s and 1940s were built on those two grievances rather than on anything happening in Delhi.
Rulers and commanders
Yeshe-O King of Guge Ruler c. late 10th century
Sponsored the second diffusion of Buddhism in western Tibet, sending students to Kashmir for training and paying for the temple foundations that followed. Tabo, in Spiti, was built on his authority in 996.
Dynasty: Guge (Ngari Khorsum successor line). Seat: Tholing
Rinchen Zangpo Lotsawa (translator) Founder 958–1055
Translator and temple founder. The monasteries and wall-painting traditions attributed to his circuit, Tabo above all, are the oldest continuously used Buddhist buildings in India and set the visual idiom of the whole trans-Himalayan belt.
Seat: Tholing and the western Himalayan temple circuit
The Nono of Spiti Nono Administrator c. 11th century – 1947
Not a dynasty but a hereditary local office. The nono collected revenue, settled disputes and represented the valley to whichever outside power held it - Leh, then briefly Kullu, then Lahore, then the British district officer. Spiti's continuity through eight centuries of changing overlords is the continuity of this office rather than of any kingdom.
Seat: Dhankar
Kehri Singh Raja Ruler 17th century
The ruler under whom Bushahr expanded into the state the British later dealt with. The founding of Rampur on the Sutlej is attributed to him in some accounts and to Ram Singh in the eighteenth century in others; the state's own records for this period were destroyed in 1803–15 and the attribution is not settled.
Dynasty: Bushahr. Seat: Kamru and Sarahan
Amar Singh Thapa Kaji Commander occupation of the Sutlej hills, 1803–1815
Commanded the Gorkha forces that held the Sutlej hill states for twelve years. His defeat in April 1815 ended the occupation and brought the whole belt under British paramountcy instead.
Dynasty: Gorkha (Kingdom of Nepal). Seat: Arki and the Sutlej hill states
Mahendra Singh Raja Ruler 1816–1850
Restored by the sanad of 6 November 1815 as a protected ruler. Bushahr under him was the largest of the twenty-eight Simla Hill States, and the Sutlej trade route to Tibet through Kinnaur was its principal asset.
Dynasty: Bushahr. Seat: Rampur
Mansukh Das Wazir of Spiti Administrator 1846–1848
Held the wazirship in the years Spiti changed hands, bridging Ladakhi and British administration. The office he held was given formal magisterial powers in 1873 and ran the valley until 1947.
Seat: Spiti
Padam Singh Raja Ruler 1914–1947
The last ruling raja of Bushahr. The Praja Mandal agitations against begar and reet ran through his reign; an assembly was conceded on 18 April 1947, shortly before his death, and elections to a Vidhan Parishad were held that October.
Dynasty: Bushahr. Seat: Rampur