East Francia

Kingdom of the East Franks
Regnum Francorum orientalium (Latin)
843–962
East Francia in 843 after the Treaty of Verdun
CapitalVarious, including Frankfurt and Ratisbon (Regensburg)
Common languagesMedieval Latin
Old High German
Old Low German
Old Dutch
Old Frisian
Slavic languages
Religion
DemonymEast Frankish • East Frank
GovernmentMonarchy
King 
• 843–876
Louis the German (first)
• 936–962 (title held until his death in 973)
Otto the Great
Historical eraMiddle Ages
843
870
• Disestablished
962
CurrencyPfennig
Preceded by
Succeeded by
Francia
Carolingian Empire
Holy Roman Empire
Kingdom of Germany

East Francia (Latin: Francia orientalis) or the Kingdom of the East Franks (Regnum Francorum orientalium) was a successor state of the Carolingian Empire ruled by the Carolingian dynasty until 911. It was established through the 843 Treaty of Verdun which divided the former kingdom of Francia into three kingdoms: Francia Orientalis (the East Frankish kingdom); Francia Media (the Middle Frankish kingdom); and Francia Occidentalis (the West Frankish kingdom).

The east–west division with the Treaty of Verdun, enforced by the Germanic-Latin language split, "gradually hardened into the establishment of separate kingdoms", with East Francia becoming (or being) the Kingdom of Germany, and West Francia becoming the Kingdom of France.