several information on its foundation and history is given in Sørensen & Hazod 2005 (pp. 102f. n. 268)
est. by srong btsan sgam po/ (d. 649/650) as support (Stütze)/supportive monastery of khra 'brug byams pa mi 'gyur gyi gtsug lag khang / in the dynastic period Uebach 1987 (p. 91) Sørensen & Hazod 2005 (pp. 29, 102 n. 268)
allegedly erected by srong btsan sgam po/ (d. 649/650) Sørensen & Hazod 2005 (p. 102 n. 268)
constructed during the reign of khri lde srong btsan/ at the end of the 8th or in the early 9th century (between 804-817) Sørensen & Hazod 2005 (pp. 222f., 309, 106 n. 271, 102 n. 268)
three different queens are connected with its foundation, cf. Sørensen & Hazod 2005 (p. 102 n. 268)
founded by khri srong/'s mother nang tshul byang chub rgyal mo/ (acc. to mkhyen brtse dbang po) Ferrari 1958 (pp. 12f., 51) dgon sde khag ngo sprod [2007] (p. 134) Dowman 1988 (p. 194)
founded by dpal gyi ngang tshul/, the wife of khri ral pa can/ (sic!) lho kha chos 'byung [2005] (p. 40)