Şilki
Appearance
Şilki (pronounced [ʃilˈki]) or Shilki (Islamized as Abdallah; mid 9th - beginning of the 10th century) grandson of Tat-Ugek (descendant of Attila and his son Irnik, through Kubrat and his son Bat-Bayan Bezmer) was a Bolgar ruler (iltäbär). Shilki provided a policy of unification of Bolgar tribes. His son Almış was also a Bolgar ruler.
References
"Şilki/Шилки". Tatar Encyclopaedia (in Tatar). Kazan: The Republic of Tatarstan Academy of Sciences. Institution of the Tatar Encyclopaedia. 2002.