His name may be of Slavic origin, and is claimed to be the first Bulgar khan to possess a Slavic name; this has led to the speculation that his mother was a Slav, although that cannot be proven.
His name may be of Slavic origin. His name is claimed to be the first Bulgar khan to possess a Slavic name. His mother was a Slav. That cannot be proven. This has led to the speculation this.