Külüg Qaghan
Külüg Bilge Qaghan was the 5th leader of Uyghur Khaganate. His Tang invested title was Zhongzhen Qaghan and was known as Panguan Tegin before taking the throne. He was born around 772/773.
Biography
Reign
He was a minor when his father, Tun Baga Tarkhan of the Uyghur Khaganate, died. He was known as Panguan Tegin, when raised to throne after his father's death. He reigned for only 5 months.Death
According to one account he was killed by his brother, who for a time usurped the throne. Another account suggested that Külüg Qaghan was poisoned by a khatun – E, who happened to be a granddaughter of Pugu Huai'en. His throne was usurped by his brother, however he was killed by nobles who in turn raised his minor son Achuo to the throne.His death happened just before Uyghurs suffered a heavy defeat under Grand Chancellor Inanchu Bilge of Elter against the Tibetans who were aided by the ruler of the Karluk Yabghu, Alp Burguchan who united the Chigils, Bulaqs and Shatuo, near Beshbaliq. As a result Yang Xigu Commander of Beiting Protectorate committed suicide.