Wikipedia
Vokil
The Vokil, Ukil or Uokil were a dynastic clan of 1st millennium Danube Bulgaria.
They contributed four monarchs listed in the Nominalia of the Bulgarian khans. According to the Nominalia, they "ruled on that side of Danube for 515 years with shaven heads". The first Bulgarian supreme Khan of the Vokil lineage listed in Nominalia was Kormisosh (r. 737–754) and the last was Umor (r. 766).