830s births

King of Bavaria from 876 to 879

King of Lotharingia from 855 to 869

King of East Francia

Abū Isḥāq Muḥammad ibn Hārūn ibn Muḥammad ibn Hārūn al-Muhtadī bi-ʾLlāh (‎; – 21 June 870), better known by his regnal name al-Muhtadī bi-ʾLlāh (Arabic: , "Guided by God"), was the Caliph of the Abbasid Caliphate from July 869 to June 870, during the "Anarchy at Samarra".

Frankish noble

margrave of Flanders

Bulgarian writer & missionary

Persian scholar and physician

Prince of the Serbs

physician

Arab poet and linguist

priest

Chinese poet (836-910)

Ruler of the Gurjara-Pratihara dynasty

Chinese writer and statesman (833-909)

Beatified German nun

Governor of Baghdad and military officer (c.838–913)

Count of Angoulême from 866 to 886

French noble, 8th Count of Paris (c.830–890)

thumb|upright=1|Æthelswith in a thirteenth-century cartulary for [[Abingdon Abbey ]] Æthelswith (–888) was the only known daughter of King Æthelwulf of Wessex. She married King Burgred of Mercia in 853. The couple had no known children.

Tang dynasty poet

Italian prince

chancellor of Tang Dynasty during the reign of Emperor Zhaozong of Tang

Iraqi poet

King of Leinster