List of state leaders in 828
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This is a list of heads of state, government leaders, and other rulers in the year 828.
Africa
Asia
- China (Tang dynasty) – Emperor Wenzong (826–840)
- Pratihara Empire – Nagabhata II (805–833)
- Japan (Heian period) – Emperor Junna (823–833)
- Korea (North South States Period)
- Balhae – Seon (818–830)
- Unified Silla – Heungdeok (826–836)
Europe
- First Bulgarian Empire – Omurtag, Khan of the Bulgars (814–831)
- Byzantine Empire – Michael II (820–829)
- Caucasus
- Principality of Iberia – Ashot I Kuropalates (c. 813–830)
- Principality of Kakheti – Vache (827–839)
- Kingdom of Denmark – Horik I (813–854)
- England (Heptarchy) –
- Kingdom of East Anglia – Æthelstan (826–c. 839)
- Kingdom of Kent – Egbert of Wessex (825–839)
- Kingdom of Mercia – Wiglaf (827–829)
- Kingdom of Northumbria – Eanred (810–841)
- Kingdom of Wessex – Egbert (802–839)
- Frankish Empire –
- Louis the Pious, King of the Franks and senior Holy Roman Emperor (814–840)
- Lothair I, King of Italy and junior Holy Roman Emperor (817–855)
- Kingdom of Aquitaine – Pepin I (817–838)
- Auvergne – Guerin of Provence, Count of Auvergne (819–839)
- Duchy of Gascony – Aznar Sánchez (819–836)
- County of Toulouse – Berengar the Wise (816–835)
- County of Barcelona – Bernard of Septimania (826–832)
- Duchy of Bavaria – Louis the German (817–843)
- Duchy of Croatia – Vladislav of Croatia (c. 821–835)
- County of Nantes – Lambert I (818–831)
- County of Poitiers – Emenon (828–839)
- County of Urgell – Aznar Galíndez I (820–834)
- Ireland – Conchobar mac Donnchada, High King of Ireland (819–833)
- Kingdom of Ailech – Niall Caille (823–846)
- Kingdom of Connacht – Diarmait mac Tommaltaig (815–833)
- Uí Maine –
- Kingdom of Leinster – Muiredach mac Ruadrach (808–829)
- Kingdom of Mide – Conchobar mac Donnchada (803–833)
- Kingdom of Ulaid – Muiredach mac Eochada (825–839)
- Kingdom of Italy – Lothair I, King of Italy and junior Holy Roman Emperor (818–855)
- Principality of Benevento – Sico of Benevento (817–832)
- Papal States – Pope Gregory IV (827–844)
- Republic of Venice – Giustiniano Participazio, Doge of Venice (827–829)
- Scotland
- Kingdom of the Picts – Óengus II (820–834)
- Spain –
- County of Aragon – García Galíndez (820–833)
- Kingdom of Asturias – Alfonso II (791–842)
- Emirate of Córdoba – Abd ar-Rahman II (822–852)
- Kingdom of Pamplona – Íñigo Arista (824–851/852)
- Wales –
- Kingdom of Gwynedd – Merfyn Frych (825–844)
- Kingdom of Powys – Cyngen ap Cadell (808–855)
Middle East
- Abbasid Caliphate – Al-Ma'mun (813–833)
- Byzantine Empire – Michael II (820–829)