Emperor Saga moves to the Reizen-in and tells Fujiwara no Fuyutsugu that he intends to abdicate to the crown prince. Fuyutsugu objects, citing the burden on the retired sovereigns, but the emperor does not give way. (Nihon Kōki (Later Chronicles of Japan) 日本後紀 卷30)
Emperor Junna moves from the crown prince's palace to the inner palace. Earlier, Prince Tokiyo had firmly declined the succession, and Prince Masara is established as crown prince. (Nihon Kōki (Later Chronicles of Japan) 日本後紀 卷31)
Lothair, who was administering justice in Italy, goes to Rome at the request of Pope Paschal and at Easter (April 5) in St Peter's basilica receives the imperial crown and the titles of emperor and Augustus; he returns to his father in June via Pavia (Royal Frankish Annals ARF a.823, Kurze 1895 p.161)
News reaches the emperor that Theodore, an official of the papal curia, and his son-in-law Leo were blinded and beheaded in the Lateran palace (reportedly for siding with the emperor, or on Pope Paschal's order). The pope declares his innocence under oath and says the killers were of the family of Peter, so the act was justified (Royal Frankish Annals ARF a.823, Kurze 1895 p.161)
Western Europe (6)
The Welsh of Cornwall and the people of Devon fought at Camelford. (Anglo-Saxon Chronicle Giles/Ingram 1847 A.D. 823 항 (pg657.txt 줄 2514))
At Wilton, Egbert of Wessex and Beornwulf of Mercia fought; Egbert won and sent his son Æthelwulf to Kent. (Anglo-Saxon Chronicle Giles/Ingram 1847 A.D. 823 항 (pg657.txt 줄 2514))
At the May assembly, Milegastus and Cealadragus, sons of Liudi, king of the Wilzi, come before the emperor to contest the throne. The younger brother preferred by the people is set to rule; both are sent home after gifts and oaths (Royal Frankish Annals ARF a.823, Kurze 1895 p.160)
When the emperor sets Compiègne as the site of the November general assembly and is about to disperse, news arrives that Riudewit left the Sorbs for the Dalmatian home of his cousin Riudemuhslus, son of Bornas's brother, and was killed by Riudemuhslus's trickery (Royal Frankish Annals ARF a.823, Kurze 1895 p.161)
On 1 November the emperor arrives at Compiègne. Ceadragus, leader of the Abodrites, comes to explain his long absence and is forgiven, returning with gifts. Heriold also comes from Denmark to ask for help against the sons of Godofrid (Royal Frankish Annals ARF a.823, Kurze 1895 p.162)
This year there was an earthquake at the palace of Aachen; in the Tours region a twelve-year-old girl fasted for ten months; in Piriuhsazi in Saxony twenty-three villages burned by fire from heaven; in a church of the Comum region an image of the Virgin shone for two days. Hail and thunderbolt damage and a great plague and deaths followed (Royal Frankish Annals ARF a.823, Kurze 1895 p.163)