867 deaths

pope

Byzantine emperor from 842 to 867

9th-century Byzantine empress, wife of Theophilos

king of Northumbria in the middle of the 9th century

German theologian

Count of Aragon

9th-century Northumbrian monarch

Abbasid governor and police chief of Baghdad from 851 to 867

Turkic general

abbot of Saint-Denis (9th c.)

eighth ruler of the Bavand dynasty

Shakatayana (; 814–760 BCE) was a Sanskrit grammarian, linguist, and Vedic scholar. He is known for his theory that all nouns are derived from a verbal root which contrasted to grammarian Pāṇini. He also posited that prepositions only have a meaning when attached to nouns or other words. His theories are presented in his work, Śākaṭāyana-śabdānuśāsana, which is not found in its entirety but referenced by other scholars such as Yāska and Pāṇini.

Japanese noble