Bhutanese art is similar to Tibetan art. Both are based upon Vajrayana Buddhism and its pantheon of teachers and divine beings. The major orders of Buddhism in Bhutan are the Drukpa Lineage and the Nyingma. The former is a branch of the Kagyu school and is known for paintings documenting the lineage of Buddhist masters and the 70 Je Khenpo (leaders of the Bhutanese monastic establishment). The Nyingma school is known for images of Padmasambhava ("Guru Rinpoche"), who is credited with introducing Buddhism into Bhutan in the 7th century. According to legend, Padmasambhava hid sacred treasures for future Buddhist masters, especially Pema Lingpa, to find. Tertöns are also frequent subjects of Nyingma art.