Rumtek's history divides into two foundings separated by two centuries. The twelfth Karmapa, Changchub Dorje, established the original monastery in Sikkim in the mid eighteenth century, and it stood, gradually declining, until the twentieth century gave it a second, more consequential beginning. When the sixteenth Karmapa, Rangjung Rigpe Dorje, fled Tibet for India in 1959 as Chinese control tightened over his homeland, he chose the ruined site at Rumtek to rebuild, and in 1966 he formally inaugurated it as the Dharma Chakra Centre, his seat outside Tibet and the new center of the Karma Kagyu school he headed.
The sixteenth Karmapa's death in 1981 opened a succession crisis never resolved. Tradition holds that a Karmapa's rebirth is identified by senior lamas of his own lineage, but this time two separate recognitions emerged from within the Karma Kagyu leadership itself. The Tsurphu Labrang recognized and enthroned a boy named Ogyen Trinley Dorje at Tsurphu Monastery in Tibet in 1992, a recognition the Dalai Lama also endorsed; he later left for India in 1999. A separate body, the Karmapa Charitable Trust, recognized a different candidate, Trinley Thaye Dorje, as the seventeenth Karmapa. Both men have been enthroned by substantial followings, both are addressed as Karmapa by their supporters, and the two have never met.
Rumtek itself became the dispute's battleground rather than its resolution. Rival monks clashed inside repeatedly through the 1990s, and by 2003 Indian security forces had removed one faction's monks, stationing guards to prevent further violence, a presence that continues. Neither claimant has been installed at Rumtek itself, leaving its ownership and its place in the succession unsettled, with neither side's claim adjudicated here or anywhere else.