Ed was the brother of Edemen son of the Dulo clan's Csaba and his Hvarezmi wife.
Edu's Cumans lived in Poltava and was in alliance with the Rus whom they assisted against the Almos invaders before joining it.
Ed was the Iverian son of Csaba and the ancestor of the Kazarig peoples. His descendant was Kubrat and Kotrag (Kotrag was the ancestor of Ugyek and Almos who ruled in Bashkortostan according to the Җәгъфәр тарихы).