Who was alive in AD 840?
30 of the people we track were surely alive in AD 840. The best known are listed first, with the age each reached that year; a range such as 17–21 means the birth year itself is uncertain.
Died in AD 840: Louis the Pious and Einhard.
Al-Khwarizmi57–62
Louis the Pious61 or 62 †- Al-Kindi36–41
Charles the Bald17
Muhammad al-Bukhari30
Pope Gregory IV42–47
Pope John VIII17–22- Ahmad ibn Hanbal60
- Pope Adrian II47–48
Pope Leo IV47–52
Pope Formosus21–26
Pope Benedict III27–32- Pope Marinus I9–10
Pope Nicholas I17–22
Pope Sergius II47–52- Charles the Fat0–8
Rurik9–10
Muslim ibn al-Hajjaj18–19
Al-Tabari1–2
Lothair I44–45
John Scotus Eriugena30–40
Louis the German31–36
Bai Juyi68- Al-Jahiz65
Michael I Rangabe67–72
Abd ar-Rahman II47–48
Einhard†
Al-Mu'tasim43–44
Rabanus Maurus50–64
Alfonso II of Asturias81
Where the people alive in AD 840 were born
Birthplaces as a list
- Louis the Pious: Chasseneuil-du-Poitou
- Al-Kindi: Basra
- Charles the Bald: Frankfurt
- Muhammad al-Bukhari: Bukhara
- Pope Gregory IV: Rome
- Pope John VIII: Rome
- Ahmad ibn Hanbal: Baghdad
- Pope Adrian II: Rome
- Pope Leo IV: Rome
- Pope Formosus: Rome
- Pope Benedict III: Rome
- Pope Marinus I: Gallese
- Pope Nicholas I: Rome
- Pope Sergius II: Rome
- Charles the Fat: Neudingen
- Muslim ibn al-Hajjaj: Nishapur
- Al-Tabari: Amol
- Lothair I: Altdorf
- John Scotus Eriugena: Ireland
- Bai Juyi: Xinzheng
- Al-Jahiz: Basra
- Michael I Rangabe: Constantinople
- Abd ar-Rahman II: Toledo
- Al-Mu'tasim: Khuld Palace
- Rabanus Maurus: Mainz
- Alfonso II of Asturias: Oviedo