foundation mentioned in Roerich 1996 (p. 340)
Chan 1994 (p. 845) and Smith 2001 (p. 115) mistakenly give 1464 as the year of foundation.
(sic!) "[In 1437] the Rin spungs pa ruler Nor bu bzang po (1403-1466) laid the foundation for the monastery of Skyed mo tshal at Rdzongs dkar in Rong [...]" Czaja 2013 (pp. 221, 484). Skyed mo tshal was completed in 1441. Czaja 2013 (p. 221 n. 46)