List of state leaders in 846

Africa

*Ifriqiya - Muhammad I, Aghlabid Emir (841-856)

Asia

*Bohai/Balhae - Da Yizhen/Dae I-jin, King of Bohai/Balhae (830-857)
*China (Tang Dynasty) -
*#Wuzong, Emperor of Tang China (840-846)
*#Xuanzong, Emperor of Tang China (846-859)
*Gurjara - Mihira Bhoja I, Pratihara King of Gurjara (c. 836-886)
*Japan (Heian Period) - Emperor Nimmyō, emperor of Japan (833-850)
*Silla - Munseong, King of Silla (839-857)

Europe

*Al-Andalus - Abd-ar-rahman II, Emir of Cordoba (822-852)
*Asturias - Ramiro I, King of Asturias (842-850)
*Benevento - Ralchedis I, Prince of Benevento (839-851)
*Bulgaria - Presian, Khan of Bulgaria (836-852)
*East Anglia¹ - Æthelweard, King of East Anglia (839–855)
*East Francia - Louis the German, King of East Francia (843-876)
*England - Æthelwulf of Wessex, Bretwalda (839–856)
*Mercia - Beorhtwulf, King of Mercia (840–852)
*Middle Francia - Lothair I, King of Middle Francia (840-855), Holy Roman Emperor (823-855)
*Northumbria¹ - Æthelred II, King of Northumbria (844–849)
*Ireland -
**Bard of Limerick, High King of Ireland (845–880)
**Mael Seachlainn I, High King of Ireland (845–860)
*Papal States - Sergius II, Pope (844-847)
*"'Scotland :* possibly: Kenneth I, King of the Scots (843–858); or: ::*Picts - Drust X, King of the Picts (845–848)::*Dál Riata - Kenneth I, King of Dalriada (843–858)

*Strathclyde - Arthgal f Dyfnwal, King of Strathclyde (816–872)
*Venice - Pietro Tradonico, Doge of Venice (837-864)
*Wales - Rhodri "Mawr" ap Merfyn, King of Gwynedd (844–878)
*Western Francia - Charles the Bald, King of Western Francia (843-877)

Middle East

*Abbasid Caliphate - Al-Wathiq, Caliph (842-847)
*Byzantine Empire
**Michael III, Byzantine Emperor (842-867)
**Theodora, Regent (842-855)

Notes

#Though East Anglia, Northumbria and Mercia are traditionally perceived to have been in the heptarchy they were largely independent kingdoms until its conquest by the Danes in 869 and 867, respectively - where Mercia was conquered by Wessex in 874. All other members of the heptarchy had been conquered by Wessex and by this time had no form or king.