Gyume, the Lower Tantric College, is one of the two main Geluk tantric colleges in central Tibet. It was established in 1433 by the heir of Tsongkhapa's tantric teachings, Sherab Sengge (b.1383 - d.1445), in the southern district of Lhasa known as Nordzin Gyeltsen (nor 'dzin rgyal mtshan). Later Gyume was moved to the Changlochen district in the northern section of the city. The main study at Gyume is of the tantric systems of the Akshobhya form of Guhyasamaja (gsang ‘dus mi skyod pa), the Luipa tradition of Chakrasamvara (bde mchog lu’i pa), and Thirteen-Couple Vajrabhairava (‘jigs byed lha bcugsum). The tantric colleges at Sera and Drepung have a historical relationship with Gyume.