Toktu of Bulgaria, a monarch who ruled briefly between seven hundred sixty-six and seven hundred sixty-seven, is a figure shrouded in mystery. According to the Byzantine chronicler Patriarch Nikephoros, he was a Bulgarian and the brother of a notable figure named Bayan. This connection hints at a significant lineage, yet the details surrounding Toktu's support and political backing remain largely unknown.
Historians suggest that Toktu was aligned with a faction of the Bulgarian nobility that favored a confrontational stance against the Byzantine Empire. However, his reign was cut short by a rebellion that forced him to flee the country. Unlike his predecessor Sabin, who may have sought refuge elsewhere, Toktu attempted to escape northwards.
Tragically, his flight was thwarted, and he was captured along with his brother Bayan and their supporters near the Danube River. This violent end marked the conclusion of Toktu's brief rule and left a gap in the historical narrative of Bulgaria during this tumultuous period.
Additionally, a seventeenth-century compilation known as Cäğfär Taríxı, though its authenticity is debated, presents an intriguing account of Toktu as the son of Kermek, who was said to be a descendant of the former Bulgarian monarch Suvar. This lineage, while unverified, adds another layer to the complex tapestry of Toktu's heritage.