Given dates (all in the Common Era) are approximate and represent the upper and lower possible extremes of the person's lifetime.
Disciple of Śākyaśrībhadra (1127–1225, cf. Naudou 1968 pp. 196ff.; Ruegg 1966 pp. 42f., n. 1); Life dates: around 1200; goes to Tibet 1203/1204 (cf. Sāṅkṛtyāyana 1937 pp. 11-14; Ruegg 1981 p. 117).