evidence: During the 17th century Bhutan maintained close relations with Ladakh, and assisted Ladakh in its 1684 war with Tibet. Ladakh had earlier granted Bhutan several enclaves near Mount Kailash in western Tibet; these were monasteries of the Southern branch of the Drukpa sect and so fell under the authority of the Bhutanese Je Khenpo and the Zhabdrung. These enclaves persisted under Bhutanese control even after the rest of western Tibet came under the control of the Dalai Lama and his Gelugpa sect, until 1959 when the Bhutanese enclaves were seized by the Chinese.[16] In addition to these outposts in Tibet, Bhutan for a time[vague] held monastic fiefs in Ladakh, Zanskar, and Lahul (now part of India), as well as in Lo Manthang and Dolpo (now part of Nepal).[17][18] [...] The Duar War (1864–65) lasted only five months and, despite some battlefield victories by Bhutanese forces, resulted in Bhutan's defeat, loss of part of its sovereign territory, and forced cession of formerly occupied territories. Under the terms of the Treaty of Sinchula, signed on 11 November 1865, Bhutan ceded territories in the Assam Duars and Bengal Duars, as well as the eighty-three-square-kilometer territory of Dewangiri in southeastern Bhutan, in return for an annual subsidy of 50,000 rupees.[20] The land that was to become Bhutan House was ceded from Bhutan to British India in 1865 at the conclusion the Duar War and as a condition of the Treaty of Sinchula.[21][22]