于阗
Ralpacan was a generous supporter of Buddhism and invited many craftsmen, scholars and translators to Tibet from China, Nepal, Kashmir and the Kingdom of Khotan. He also promoted the development of Tibetan literature and translations, which were greatly aided by the development of a detailed Sanskrit-Tibetan lexicon, "Mahāvyutpatti", which included standard Tibetan equivalents for thousands of Sanskrit terms. He decreed that all translations must be done directly from Sanskrit.