Dusun Khyenpa established the Tsurphu monastery in central Tibet near Lhasa, which became the headquarters of the Karma Kagyu for eight centuries until the Chinese invasion of Tibet in 1959. The sixteenth Karmapa, Rangjung Rigpe Dorje, fled Tibet for Sikkim, where he was invited to stay at the old Rumtek gompa. Within a couple of years, the Karmapa had begun building a monastery at Rumtek, which was to become his new seat, on land donated by the Sikkimese King Chogyal Tashi Namgyal. One of the great Tibetan figures of the twentieth century, the sixteenth Karmapa was very influential in the spread of Tibetan Buddhism to the West, setting up over two hundred Karma Kagyu centres and raising funds for the rebuilding of Tsurphu. When he died in 1981, he left behind a wealthy monastery and a huge and lucrative international network, but one bitterly divided by an ugly squabble over his rightful successor. Two reincarnate Karmapas have now emerged as the main contenders to the throne – one blessed by the Dalai Lama and ensconced in Dharamsala, the other in nearby Kalimpong. A heavily armed security presence at Rumtek keeps the peace, but is a sad intrusion into the otherwise impressive monastery.