Zhangxin Qaghan
{{Infobox royalty||name=Zhangxin Qaghan|title=|image=|caption=|reign=833-839|coronation=|full name=|predecessor=Zhaoli Qaghan|successor=Qasar Qaghan|spouse=|issue=|royal house=Ädiz clan Birth
Yaglakar clan Official|dynasty=|father=Chongde Qaghan|mother=|birth_date=|birth_place=|death_date=839|death_place=|date of burial=|place of burial=|succession=Khagan of Uyghurs|regnal name=Ay Tengride Qut Bolmish Alp Külüg Bilge Qaghan ({{langx|otk|𐰖:𐱅𐰭𐰼𐰃𐰓𐰀:𐰸𐰆𐱃:𐰉𐰆𐰞𐰢𐱁:𐰞𐰯:𐰚𐰇𐰠𐰏:𐰋𐰃𐰠𐰏𐰀:𐰴𐰍𐰣|label=none}})
Blessed at Moon God, Courageous, Glorious, Wise Qaghan|birth_name=Yaoluoge Hu (藥羅葛胡)|religion=|posthumous name=}}Zhangxin Qaghan ({{Lang-zh|c=彰信可汗|s=|t=|p=|l=Manifesting sincerity}}) or Alp Külüg Bilge Qaghan was the eleventh ruler of Uyghurs. His personal name was Yaoluoge Hu (藥羅葛胡). He succeeded his uncle in 833.Zizhi Tongjian, vol. 244.
Reign
Chinese records state that he sent an embassy led by Princess Taihe to Tang, accompanied with seven women horse-archers and two Shatuo captives on 16 June 835.{{Cite book|title=The Uighur Empire according to the T'ang Dynastic Histories. A study in Sino-Uighur relations 744-840.|last=Mackerras, Colin.|date=1972|publisher=Australian National University Press|isbn=0708104576|edition=[2d ed.]|location=Canberra|oclc=624702}}
His peace policy with China proved him an unpopular ruler.{{Cite book|title=Uygur devletleri tarihi ve kültürü: Çin kaynakları ve Uygur kitabelerine göre|last=Çandarlıoğlu|first=Gülçin|date=2004|publisher=Türk Dünyası Araştırmaları Vakfı|isbn=9789754981674|location=İstanbul|language=Turkish|oclc=57231275}} This led to a rebellion in 839 by the Sogdian official An Yunhe (安允合) and Uyghur minister Chai Lei (柴勒). Qaghan was able to defeat and kill them, but a subsequent battle against another Uyghur official, general Jueluowu (掘羅勿) along with the Shatuo chief Zhuye Chixin was lost. Zhangxin died by suicide following the battle.{{Cite book|title=Tang China and the collapse of the Uighur Empire : a documentary history|last=Drompp, Michael Robert, 1953-|date=2005|publisher=Brill|isbn=9004141294|location=Leiden|pages=35|oclc=56318277}} He was succeeded by Qasar Qaghan.