The Gopālarājavaṃśāvalī says Boudhhanath was founded by the Nepalese Licchavi king Śivadeva (c. 590-604 CE); though other Nepalese chronicles date it to the reign of King Mānadeva (464-505 CE). Tibetan sources claim a mound on the site was excavated in the late 15th or early 16th century and the bones of king Aṃshuvarmā 605-621 were discovered there.
However, the Tibetan emperor, Trisong Detsän (r. 755 to 797) is also traditionally associated with the construction of the Boudhanath Stupa.Yolmo Ngagchang Sakya Zangpo from Helambu resurrected Boudhanath
