835 CE

Pope Gregory IV promotes the celebration of the feast of All Saints on this day throughout the Frankish Empire. Sweet Dew Incident: Emperor Wenzong of Tang plots to free the court from the influence of his palace eunuchs. In the northeast sector of the capital, Chang'an, after the failure of the emperor's chancellor Li Zhongyan to subdue the eunuchs' influence, troops under the eunuchs' command slaughter many officials and other associates. The Isle of Sheppey (off the northern coast of Kent) is attacked by Vikings.

In the 830s, the 9th century.

Geopolitics & Diplomacy

  • Ragnar Lodbrok, a Norse Viking ruler, rises to power. He becomes the scourge of France and England (approximate date).source

Conflict & Security

  • The Isle of Sheppey (off the northern coast of Kent) is attacked by Vikings.source
  • Vikings raid Ireland on the Kingdom of Munster, at Inis Cathaigh.source

Exploration & Expansion

  • Danish Viking raiders ally with the Cornish, against the rule of Ecgberht, King of Wessex (approximate date).source

Religion & Belief

  • November 1 – Pope Gregory IV promotes the celebration of the feast of All Saints on this day throughout the Frankish Empire.source

Culture & Society

  • December 14 – Sweet Dew Incident: Emperor Wenzong of Tang plots to free the court from the influence of his palace eunuchs. In the northeast sector of the capital, Chang'an, after the failure of the emperor's chancellor Li Zhongyan to subdue the eunuchs' influence, troops under the eunuchs' command slaughter many officials and other associates.source

Births

  • Louis the Younger, king of East Francia (or 830)source
  • Qian Kuan, Chinese warlord (approximate date)source
  • Lothair II, king of Lotharingia (died 869)source
  • Ahmad ibn Yusuf, Muslim mathematician (died 912)source
  • Ahmad ibn Tulun, Muslim governor (died 884)source
  • Guaifer of Salerno, Lombard prince (approximate date)source

Deaths

  • Duan Wenchang, chancellor of the Tang dynasty (born 773)source
  • Li Fengji, chancellor of the Tang dynasty (born 758)source
  • Lu Tong, Chinese poet (born 790)source
  • Wang Ya, chancellor of the Tang dynastysource
  • Wang Shoucheng, Chinese eunuch and officialsource
  • Li Zhongyan, chancellor of the Tang dynastysource
  • Kūkai, Japanese Buddhist monk (born 774)source
  • Jia Su, chancellor of the Tang dynastysource
  • Shu Yuanyu, Chinese official and chancellorsource
  • Jayavarman II, founder of the Khmer Empiresource
  • Muhammad al-Jawad, 9th Twelver Shī'ah Imām (born 811)source
  • Zheng Zhu, Chinese general and officialsource
  • Lu Sui, chancellor of the Tang dynasty (born 776)source
  • Yang Zhicheng, Chinese governor (jiedushi)source