Kyabgon Trulshik Adeu Rinpoche also known as Drupchok Rinpoche (1931-2007) was an important Drukpa Kagyu teacher from Tsechu Monastery, Nangchen. Like the 8th Khamtrul Rinpoche, he was a disciple of 8th Drukpa Choegon Rinpoche and Samten Gyatso. Both 8th Nangchen Adeu Rinpoche and 8th Khamtrul Rinpoche are the two main lineage holders of Drukpa Kagyu Lineage from 8th Drukpa Choegon Rinpoche. He is the main teacher of the current 9th Choegon Rinpoche, 9th Khamtrul Rinpoche and many other great tulkus of Drukpa Kagyu tradition.

The 8th Adeu Rinpoche was born on the 4th day of the 12th Tibetan month in the Iron Horse year of the 15th calendarical cycle, in the middle of a freezing winter. The 16th Karmapa and the 8th Choegon Rinpoche recognized the child as the authentic reincarnation of the 7th Adeu Rinpoche. He then was taken to Tsechu Gompa (Nangchen Garh) for enthronement at the age of 7. Immediately after this, he began his traditional education in writing, calligraphy, poetry, astrology, mandala painting, spiritual practice, text recitation and many related trainings. At the same time, the young Adeu Rinpoche also received many teachings and pith-instructions based on the old and new traditions, but primarily on the Drukpa Kagyu Lineage from the 8th Choegon Rinpoche, Jamyang Khyentse Chokyi Lodro and many other great masters. After that, Rinpoche entered into a 7 years retreat, during which he practised the sadhanas of different deities and trained in Tsalung, following the Six Yogas of Naropa and the liberating Mahamudra mind-training practices. Adeu Rinpoche later wrote a precise commentary on the three sets of vows, the 'Root of Heart-Essence of Nyingmapa Lineage', and on the various mandala deities.

In 1958, all the sacred texts, statues and precious holy objects were completely destroyed, and Rinpoche was imprisoned for 15 years. Although Adeu Rinpoche suffered a great deal, the period in prison gave him an opportunity to meet many accomplished masters, who had also been imprisoned, especially Khenpo Munsel from whom he received instructions on Dzogchen, and under whose guidance, he practised the rare and precious teachings of the Aural Lineage (Nyengyü) of the Nyingma school, and studied the various Nyingmapa Terma teachings.

Adeu Rinpoche was an extremely important master of the Drukpa Kagyu Lineage, especially following the Cultural Revolution, during which many great Drukpa Kagyu Lineage masters passed away. When teachings of the Drukpa Kagyu Lineage was faced with extinction, Adeu Rinpoche was the only remaining lineage holder of the Khampa tradition of the Drukpa Kagyu Lineage.

In 1940's, 8th Drukpa Choegon Rinpoche had already prophesized that the reason he choose to gave empowerment in Nangchen Garh (Tsechu Monastery) rather than Khampagar was because Adeu Rinpoche will in future be responsible for the propagation and transmission of his lineage. At that time, 8th Adeu Rinpoche was the head of Drukpa Kagyu Lineage in Nangchen.

Prophetically, at the end of 1980, Adeu Rinpoche was invited to Tashi Jong in India to pass on the entire lineage of the Khampa Drukpa Kagyu tradition to the present 9th Khamtrul Rinpoche Shedrub Nyima, 9th Drukpa Choegon Rinpoche Chokyi Wangchuk and many other tulkus of the Drukpa Kagyu Lineage. Later he was invited to other part of India and Nepal in early 1990s, where he gave complete lineage transmissions to all the Drukpa Kagyu rinpoches, khenpos and monks.

In later part of 1990's, Adeu Rinpoche gave the complete empowerments of the Drukpa Kagyu Lineage to the local tulkus in Nangchen. About 51 tulkus and 1600 monks and nuns were present to receive the empowerments and oral transmissions. In this way, Adeu Rinpoche became the main lineage master of the Khampa Drukpa Kagyu tradition for all the Drukpa Kagyu tulkus.

Thereafter, Adeu Rinpoche went to Bhutan and exchanged initiations with Je Khenpo, Jigme Chodrak Rinpoche, Dilgo Khyentse Rinpoche and many other enlightened masters, thus becoming a representative of the Drukpa Kagyu Lineage. Later, he visited Bhutan and India once again and gave empowerment to every Drukpa Kagyu Masters from the Je Khenpos of Bhutan to all Drukpa Kagyu Rinpoches and Sanghas.

Adeu Rinpoche also took responsibility for restoring Tsechu Gompa, and at the same time tirelessly collecting, correcting and editing all the Drukpa Kagyu teachings, tantras and practices.

In this way, Nangchen Adeu Rinpoche has conferred the complete lineage transmission to all Drukpa Kagyu's tulkus and monks, including the Six Yogas of Naropas in more than 60 monasteries, guided thousands of practitioners to practice Mahamudra and Dzogchen, performed hundreds of Drubchens in different monasteries, compiled more than 120 volumes of Drukpa Kagyu texts and established numerous retreat centers.

After a brief period of illness he passed away in Tibet in July 2007.