Dorje Gyalpo (1110-1170) arrives at Phagmodru in central Tibet and selects it as his meditation spot. The Densatil Monastery is later constructed at this site. Dorje Gyalpo becomes known as Phagmo Drupa, a name which is later applied to his school and its followers, the Phagmo Drupa Kagyu; and the noble house associated with it, the Lang Phagmo Drupa.
Phagmo Drupa Dorje Gyalpo's pupil, Jigten Gonpo (1153–1217), founds the Drigung Monastery in central Tibet.
Jigten Gonpo has a vision of a multitude of deities arranged like a tashi gomang stupa on the Pure Crystal Mountain in Tsari.
Followers of Phagmo Drupa hold a large meeting and agree the main hall of the Densatil Monastery should be built at the location of the thatched hut in which Phagmo Drupa Dorje Gyalpo meditated.
Jigten Gonpo invites artists from Nepal to construct the first tashi gomang stupa at the Drigung Monastery.
The tashi gomang structure at the Drigung Monastery is completed. Jigten Gonpo brings the tashi wobar stupa containing the relics of Phagmo Drupa Dorje Gyalpo to Drigung and places it on top of the tashi gomang structure thereby completing the tashi gomang stupa. Facing increasing pressure from Phagmo Drupa’s followers, Jigen Gonpo is forced to return the tashi wobar stupa to Densatil. A new stupa is built at Drigung to take its place.
The first tashi gomang stupa is built at the Densatil Monastery for the late abbot Dragpa Tsondru (1203–1267).
A second tashi gomang stupa is erected at the Densatil Monastery for Rinchen Dorje (1218–1281).
War breaks out between the Drigung Kagyu school and the Sakya school. The Drigung Monastery is set on fire and the tashi gomang stupa there is most likely destroyed.
Jangchub Gyaltsen (1302–1364) becomes the founder of the Phagmo Drupa dynasty.