| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
|
| Gregorian calendar | 816 DCCCXVI |
| Ab urbe condita | 1569 |
| Armenian calendar | 265 ԹՎ ՄԿԵ |
| Assyrian calendar | 5566 |
| Balinese saka calendar | 737–738 |
| Bengali calendar | 223 |
| Berber calendar | 1766 |
| Buddhist calendar | 1360 |
| Burmese calendar | 178 |
| Byzantine calendar | 6324–6325 |
| Chinese calendar | 乙未年 (Wood Goat) 3512 or 3452 — to — 丙申年 (Fire Monkey) 3513 or 3453 |
| Coptic calendar | 532–533 |
| Discordian calendar | 1982 |
| Ethiopian calendar | 808–809 |
| Hebrew calendar | 4576–4577 |
| Hindu calendars | |
| - Vikram Samvat | 872–873 |
| - Shaka Samvat | 737–738 |
| - Kali Yuga | 3916–3917 |
| Holocene calendar | 10816 |
| Iranian calendar | 194–195 |
| Islamic calendar | 200–201 |
| Japanese calendar | Kōnin 7 (弘仁７年) |
| Javanese calendar | 712–713 |
| Julian calendar | 816 DCCCXVI |
| Korean calendar | 3149 |
| Minguo calendar | 1096 before ROC 民前1096年 |
| Nanakshahi calendar | −652 |
| Seleucid era | 1127/1128 AG |
| Thai solar calendar | 1358–1359 |
| Tibetan calendar | 阴木羊年 (female Wood-Goat) 942 or 561 or −211 — to — 阳火猴年 (male Fire-Monkey) 943 or 562 or −210 |
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Pope Stephen IV (c. 770–817)
Year 816 (DCCCXVI) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar.
Events
By place
Europe
- October 5 – King Louis the Pious (son of Charlemagne) is crowned emperor of the Holy Roman Empire, by Pope Stephen IV at Reims. He also crowns the emperor's wife Ermengarde as Holy Roman Empress. The ceremony in Reims re-establishes the principle of papal supremacy, by recognising the importance of the pope in imperial coronations. Louis gives the pope many gifts, including the estate tax Vendeuvre, near Troyes (Northern France).[1]
- Battle of Pancorbo: A Moorish army from the Emirate of Córdoba is sent by Emir Al-Hakam I, to take control of the pass at Pancorbo. They defeat the army of Asturian-Basque Frankish vassals.[2]
- Winter – The Basques, supported by the Moors, cross the Garonne River and revolt against the Franks in Gascony (north of the Pyrenees).[3]
Britain
- King Hywel of Gwynedd is attacked by his brother Cynan on Anglesey (modern Wales), who is killed during the fighting (approximate date).
Abbasid Caliphate
- Babak Khorramdin, Persian military leader, revolts against the Abbasid Caliphate in Azerbaijan (approximate date).
By topic
Religion
- Synod of Aachen: Louis the Pious calls for a council about the regulations (Institutio canonicorum Aquisgranensis) for monastic life in the Frankish Empire.
- Synod of Chelsea: King Coenwulf of Mercia calls for a council about his right to appoint abbots and monasteries in England.
- June 12 – Pope Leo III dies after a 20-year reign, and is succeeded by Pope Stephen IV as the 97th pope of Rome.
Births
- Al-Wathiq, caliph of the Abbasid Caliphate (d. 847)
- Formosus, pope of the Catholic Church (approximate date)
- Henjō, Japanese waka poet (d. 890)
Deaths
- June 12 – Leo III, pope of the Catholic Church (b. 750)
- October 28 – Beggo, count of Toulouse and Paris
- Cynan Dindaethwy, king of Gwynedd (Wales)
- Fātimah bint Mūsā, Muslim saint (b. 790)
- Harthama ibn A'yan, Muslim governor
- Hildoard, archbishop of Cambrai
- Li He, Chinese poet (b. 790)
- Empress Dowager Wang (Xianzong), Chinese empress
- Wulfar, archbishop of Reims