Sachen Kunga Nyingpo
Sachen Kunga Nyingpo (Wyl. sa chen kun dga' snying po) (1092-1158) — a great Sakya master to whom Manjushri revealed the teaching known as "Parting from the Four Attachments".
He was the first of the five Sakya patriarchs, and the third throne-holder of Sakya Monastery.
He was the son of Khön Könchok Gyalpo and the father of Jetsün Drakpa Gyaltsen.
RigpaWiki:Sachen Kunga Nyingpo
Sachen Kunga Nyingpo, the first of the Five Great Sakya Masters, was born into the founding family of Sakya Monastery in U-Tsang, Central Tibet in 1092.
The third Sakya tridzin or throne holder, Sachen ('The Great Sakya') inherited his position and spiritual authority from his father Khon Konchok Gyalpo, the founder of Sakya Monastery and the first tridzin, as well as his regent the second tridzin, Bari Lotsawa Richen Drag...
Under the tutelage of Lama Shangton Chobar, Sachen Kunga Nyingpo received the Lamdre oral instructions and integrated this practice into the Sakya tradition;
since this time, the Lamdre teachings have become a Sakya hallmark and specializaiton.
Sachen also wrote many well-known treatises and commentaries on Sakya lineage texts, and was celebtated for his accomplishments in learning and realization.
Sachen devoted his life to study, intensive mediation retreat, and the transmission of the tantrayana teachings to his many worthy disciples, including his sons Sonam Tsemo and Drakpa Gyyaltsen, who would become the next generation of Sakya parriarchs and tridzins."
Sachen Kunga Nyingpo (Tibetan: ས་ཆེན་ཀུན་དགའ་སྙིང་པོ་, Wylie: Sa-chen Kun-dga’ Snying-po) (1092–1158) was a Tibetan spiritual leader and the first of the Five Venerable Supreme Sakya Masters of Tibet.
Sachen Kunga Nyinpo was the 3rd Sakya Trizin and son of Khon Konchok Gyalpo (1034–1102) who was the first Sakya Trizin and founder of the first Sakya Monastery in Tibet in 1073.
Sachen Kunga Nyingpo, the son of Khon Konchok Gyalpo and an emanation of Manjushri, was born in 1092.
From early childhood, Sachen showed great signs of wisdom.
At the age of twelve, Sachen, under the guidance of his guru, Bari Lotsava, performed one-point mediation on Manjushri.
After meditating on this for a continuous period of six months, Manjushri appeared in front of him and gave him the teachings on the parting of four attachments as follows:
Sachen realised in an instant that this teaching contained the essence of the Path of Perfection.
He was a strict vegetarian and received teachings and empowerments on sutras and tantras from many great teachers, including his father and Virupa.
Sachen was a man of immense virtue and bodhicitta.
He had immeasurable faith in his practice and was a great teacher of Dharma.
Sachen passed all the doctrines to his two sons, Sonam Tsemo and Drakpa Gyaltsen.
He died at the age of 67 in 1158, where his four emanations departed to four pure lands to benefit sentient beings.
Wikipedia:Sachen Kunga Nyingpo