In any case, Trinley Gyatso died within three years of assuming power. In 1873, at the age of 20 "he suddenly became ill and passed away". On the cause of his early death, accounts diverge. Mullin relates an interesting theory, based on cited Tibetan sources: out of concern for the monastic tradition, Trinley Gyatso chose to die and reincarnate as the 13th Dalai Lama, rather than taking the option of marrying a woman called Rigma Tsomo from Kokonor and leaving an heir to "oversee Tibet's future". Shakabpa on the other hand, without citing sources, notes that Trinley Gyatso was influenced and manipulated by two close acquaintances who were subsequently accused of having a hand in his fatal illness and imprisoned, tortured and exiled as a result.