817

Updated on Oct 12, 2024

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Year 817 (DCCCXVII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.

Europe

Summer – Emperor Louis I issues an Ordinatio Imperii, an imperial decree that lays out plans for an ordely succession. He divides the Frankish Empire among his three sons: Lothair is proclaimed co-emperor in Aachen, and becomes the overlord of his brothers. He receives the dominion of Burgundy (including German and Gallic parts). Pepin is proclaimed king of Aquitaine, and receives Gascony (including the marche around Toulouse and parts of Septimania); Louis (the youngest son) is proclaimed king of Bavaria, and receives the dominions of East Francia.

Prince Grimoald IV is assassinated by a complot of Lombard nobles vying for his throne. He is succeeded by Sico as ruler of Benevento (Southern Italy), who is forced to pay an annual tribute of 7,000 solidi to Louis I.

North Africa

Ziyadat Allah I becomes the third Aghlabid emir of Ifriqiya (modern Tunisia). During his rule, the relationship between the Aghlabid Dynasty and the Arab troops remains strained.