The world in 806 AD — what happened that year

11 events the sources record for this year, grouped by region.

What happened

Retired Emperor Shunzong died at Xingqing Palace. (Old Book of Tang (Jiu Tangshu), Annals 舊唐書卷14 元和1年 1月)
Gao Chongwen restored Chengdu and captured Liu Pi, delivering him. (Old Book of Tang (Jiu Tangshu), Annals 舊唐書卷14 元和1年)
Gao Chongwen captured Chengdu, ending Liu Pi's rebellion; Liu was executed the following month. (New Book of Tang (Xin Tangshu), Annals 新唐書卷007 德宗·順宗·憲宗元和1年10月)

Uda-no (宇太野) in Kadono district, Yamashiro, was made the site of the imperial tomb. Mourning was observed: all officials wore mourning robes. Fire broke out on two mountains to the north-west. (Nihon Kōki (Later Chronicles of Japan) 日本後紀卷13)
Emperor Kanmu was buried at the Kashiwabara mausoleum in Kii district, Yamashiro. His personal name was Yamabe, eldest son of Emperor Tenshō Kōshō. The earlier history is missing, so this entry records his whole life. (Nihon Kōki (Later Chronicles of Japan) 日本後紀卷13)
Emperor Heizei ascended the throne in the Daigokuden and changed the era name to Daidō; the historian commented that a change of era not waiting until the year after accession is contrary to ritual. (Nihon Kōki (Later Chronicles of Japan) 日本後紀卷14)

Hartama becomes governor of Khurasan — the power of Rafi grows (Al-Tabari, History of the Prophets and Kings Series III tom.2 (Arg.) [india.history.resource.86977], Annus 191)

Just after Christmas, the Venetian doges (Willeri and Beatus), the governor of Zara Paulus, bishop Donatus and the envoys of Dalmatia come to the emperor with great gifts, and the order of government of Venice and Dalmatia is set (Royal Frankish Annals ARF a.806, Kurze 1895 p.120)
The emperor, with the Frankish nobles, deliberates on peace among his three sons and the division of the kingdom into three shares, confirms it by oath, and sends the document to Pope Leo through Einhard to seek his signature. The pope reads it, agrees, and signs it himself (Royal Frankish Annals ARF a.806, Kurze 1895 p.121)
The emperor goes from Theodonis villa along the Moselle and the Rhine to Noviomagus, and keeps Lent and Easter (April 12) there (Royal Frankish Annals ARF a.806, Kurze 1895 p.121)
The emperor sends his son Charles to the Sorbian Slavs beside the Elbe; their leader Milidoochus dies, and two castles are built beside the Saale and the Elbe (Royal Frankish Annals ARF a.806, Kurze 1895 p.121)

Places where the world territory data shows a change of borders in this year.