The Rumtek Monastery or the Dharma Chakra Center is one of the most important seats of the Kagyu lineage outside Tibet. In the early nineteen sixties, His Holiness the Sixteenth Gyalwang Karmapa founded this seat near the three hundred year old Kagyu monastery built in the sixteenth century by the Fourth King of Sikkim under the guidance of the ninth Karmapa. The new Rumtek monastery was built about two kilometers away from this old monastery. Dharma Chakra Center includes a beautifully structured main shrine temple and monastery with monks' quarters, where the Karmapa resides and where the most of the important relics are enshrined; a three-year retreat center; a Shedra, or monastic college, where the relics of the Sixteenth Karmapa are enshrined; a nunnery; stupas; a protector's shrine; institutions for the lay community; and other establishments. The monastery holds annual events for the public. Two of the most festive and important events are held each summer and winter. In the fourth lunar month of the Tsurphu Tibetan calendar either the Guru Rinpoche or the Vajrakilaya Drupchen (great sadhana practice retreat) take place.