The recognition of the Seventeenth Karmapa, the head of the Karma Kagyu sect of Tibetan Buddhism, has been the subject of controversy. Since the death of the sixteenth Karmapa, Rangjung Rigpe Dorje, in 1981, two candidates have been put forward: Ogyen Trinley Dorje (also spelled Urgyen Trinley Dorje, born 1985) and Trinley Thaye Dorje (born 1983). Both have already been enthroned as 17th Karmapa, and both independently have been performing ceremonial duties in the role of a Karmapa. They have not met, though both have expressed a willingness and desire to meet. As one academic expert in the field testified in court, while the recognition of Ogyen Trinley "appears to have been accepted by a majority of Karma Kagyu monasteries and lamas, there remains a substantial minority of monasteries and lamas who have not accepted Ogyen Trinley as Karmapa. In particular, these include the Shamar Rinpoche, who historically has been the person most directly involved in the process of recognition." It is difficult to produce an objective description of the events, arguably because of an event horizon and the most important developments are known only from conflicting accounts by inertial observers.
The Karmapa lineage is the most ancient tulku lineage in Tibetan Buddhism, predating the Dalai Lama lineage by more than two centuries. The lineage is an important one as the Karmapa is traditionally the head of the Karma Kagyu school.
As with any other lineage of tulkus, the question of recognizing the new incarnation is crucial. Sometimes, all concerned parties are sure that a particular child is indeed the new incarnation of that particular master. Such agreement was not the case with the 8th, 10th, and 12th Karmapas (each of which was resolved). A dispute has happened again in the case of the 17th Karmapa.
Karmapas have often been self-recognizing. That means that many incarnations (at least seven out of sixteen) claimed very early in life to be Karmapa, recognizing associates and colleagues of the previous incarnation. Also, each Karmapa has left indications leading to his next rebirth, often in the form of a letter. In such letters, indications regarding the location and parentage of the next incarnation were included, though usually in a poetic form that is difficult to decipher. However, the closest associates of the previous incarnation play a crucial role in the process of recognizing the next Karmapa. After all, it is they who have been closely associated with the previous incarnation and will have to raise and teach the new one.