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- Isbara (587) died in
the confusion as the Gok-Turks Kingdom dissolved, the dependent tribes revolted, the Turks
began to take refuge in China and the family members of the Turkish khan started to
quarrel. Even when his brother Ye-hu and later on Tülan (588-600), who had been announced
as khan by the parliament, took his place, the situation did not get better. The famous Ç'ang
Sun-şeng prepared rapports, showing the ways how to collapse the Gok-Turks Kingdom,
presented them to the Emperor, and in Ötüken, from where came as an envoy, he tried to
agitate members of the Turkish dynasty against each other with various intrigues.
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- His biggest assistant
had been Ts'ien-kien, the Chinese princess, who first had been the wife of Ta-po than Işbara
and later on after the death of Tülan (600) the wife of K'i-min (600-609), who became
king with the consent of China. K'i-min, this time, was being used against Tardu, who was
trying to control the Eastern Kingdom. K'i-min, in a letter had written to the Emperor
Yang-ti, that "he had been a powerless slave of the majestic protector" and that
he himself was "ready to make the Turkish tribe", whom even Işbara formerly
denied "like the Chinese".