Ralpacan (Wylie: Khri-gtsug-lde-brtsan. Other transcriptions: Repalcan, Relpachen, Tritsu Detsen (Khri gtsug lde brtsan) or Tri Ralpachen), born c. 806, the Year of the Dog was, according to traditional sources, the 41st King of Tibet, ruling from the death of his father, Sadnalegs, in c. 815, until 838 CE. He is referred to as the 'Son of God' in the dBa' bzhed.
He was the second of five brothers. The eldest, Lhasras gTsangma, took Buddhist vows. The third, Langdarma, who was anti-Buddhist and ruled after the death of Ralpacan, is referred to in the sources as "unfit to reign". The younger two brothers both died young.
Ralpacan is considered very important to the history of Tibetan Buddhism as one of the three Dharma Kings (chosgyal) — Songtsän Gampo, Trisong Detsen, and himself — who brought Buddhism to Tibet. Trisong had five wives, all from Tibetan noble families.
The Tibetan Empire reached its greatest extent under his rule, and included parts of China, India, Nepal, Khotan, sBalti (Baltistan), Bruzha (Gilgit and Hunza), Zhang Zhung, Hor-yul, Sog-yul, Yugur, and Kamilog (roughly = present-day Sichuan), as well as almost all of modern Xinjiang and Gansu.
Ralpacan's power was aided by the able military leadership of Zhang 'Bro sTag. In 810 the Chinese Emperor wrote asking for the return of three prefectures. In 816 Zhang 'Bro sTag led a raid led to within two days journey from the Uyghur capital at Ordu Baliq. In 819 he attacked the Chinese town of Yanzhou, in the southern Ordos, close to the Great Wall, when he was referred to as "First Minister". During the negotiations for a peace treaty in 821 he led a violent attack against the Chinese, which may have contributed to Chinese willingness to make peace.
The reign of Ralpacan was characterized by conflicts with China and the Uyghur state to the North. Tibetans attacked Uyghur territory in 816 and were in turn attacked in 821. After troops were sent towards the Chinese border, Buddhists in both countries sought mediation and the Sino-Tibetan treaty completed in 821/822, which insured peace for more than two decades. Tibet also made peace with the Uyghurs and also, apparently, with Nanzhao in 822.
A bilingual account of the treaty with China, including details of the borders between the two countries is inscribed on a stone pillar, erected in 823, which stands outside the Jokhang temple in Lhasa. There was also a pillar with the treaty inscribed on it erected in China and a third was apparently placed at Gugu Meru at the border (which is said by locals to have been stolen by a party of French Tibetologists).
He was a generous supporter of Buddhism and invited many craftsmen, scholars and translators to Tibet from China, Nepal, Kashmir and Khotan. He also promoted the development of Tibetan literature and translations, which were greatly aided by the development of a detailed Sanskrit-Tibetan lexicon called the Mahavyutpatti which included standard Tibetan equivalents for thousands of Sanskrit terms. He decreed that all translations must be done directly from Sanskrit.
Ralpachan built a magnificent nine-storeyed temple of 'U-shang-rdo near the confluence of the Tsangpo and Kyi rivers. The lower stories were of stone, the three middle ones of brick and the top three of wood. It was famous for its remarkable golden roof. On the top floors he stored Buddhist scriptures, chortens and images, while the middle floors were used by scholars and translators, and the bottom floors by the court and for state affairs. He also remodeled and restored older temples.
He introduced standard weights and measures based on the ones in China. He enforced the Indian canonical regulations for the clergy and organised many classes of priesthood, assigning a revenue from seven families for each Buddhist monk and proscribed strict penalties for anyone showing disrespect to them.
Death and succession
Ralpacan was, according to the most common Tibetan tradition, murdered by two pro-Bon ministers who then placed his anti-Buddhist brother, Langdarma, on the throne. Some accounts suggest that his death was an accident due to a slip on the steps of the temple of Maldro, while the Later Tang Annals state that he became sick and was unable to take control of affairs of state and then, later, died.
The latter theory finds support in a damaged manuscript from Dunhuang containing a prayer for the good health of the king. The late Chinese work, the Tongjiangangmu by Zhu Xi (1130–1200), claims that Ralpacan had been sick for almost the whole of his reign and had, therefore, been unable to travel around his empire. He is said to have died at the end of the year 838.
A reference to this epidemic in 839 is also found in the Xin Tangshu 217B.1b. It is possible that it was this epidemic which brought about Ralpacan's death, though it could equally have been the result of his chronic illness.
Reign of Tritsu Detsen (815–838)
Tritsu Detsen (Khri gtsug lde brtsan), best known as Ralpacan, is important to Tibetan Buddhists as one of the three Dharma Kings who brought Buddhism to Tibet. He was a generous supporter of Buddhism and invited many craftsmen, scholars and translators from neighboring countries. He also promoted the development of written Tibetan and translations, which were greatly aided by the development of a detailed Sanskrit-Tibetan lexicon called the Mahavyutpatti which included standard Tibetan equivalents for thousands of Sanskrit terms.
Tibet continued to be a major Central Asian empire until the mid-9th century. It was under the reign of Ralpacan that the political power of Tibet was at its greatest extent, stretching as far as Mongolia and Bengal, and entering into treaties with China on a mutual basis.
A Sino-Tibetan treaty was agreed on in 821/822 under Ralpacan, which established peace for more than two decades. A bilingual account of this treaty is inscribed on a stone pillar which stands outside the Jokhang temple in Lhasa. The full text of the treaty with its remarkable imagery describing the relationship between the Tibetan King and Chinese Emperor as one of "nephew and uncle" can be found at tpprc.org.