The name Ajjar is otherwise completely unattested in the sources, but the Namelist of Bulgarian Rulers contains indications of two damaged records between the entries for Tervel and Sevar. The second of these is the Kormesios of the Byzantine sources, Kormesij. According to the Ja'far Tarikh, Ajjar was the brother and successor of Tarvil (i.e., Tervel), and the uncle and predecessor of Kermes (i.e., Kormesij). While this testimony cannot be corroborated, it provides a convenient name for one of the lost rulers of the "Namelist". Ajjar would have reigned in 715 according to the chronology developed by Moskov.
- Mosko Moskov, Imennik na bălgarskite hanove (novo tălkuvane), Sofia 1988.
- (primary source), Bahši Iman, Džagfar Tarihy, vol. III, Orenburg 1997.