- Source: Kotrag
Kotrag was according to Nikephoros I of Constantinople a son of Kubrat of the Dulo clan of Bulgars. Following the death of his father, he began to extend the influence of his Bulgars to the Volga River. He is remembered as the founder of Volga Bulgaria.
Honour
Kotrag Nunatak on Greenwich Island in the South Shetland Islands, Antarctica is named after Kotrag.
In the Republic of Chuvashia in the village of Shemursha on Jule 30, 2022, a monument was erected to the founder of the Volga Bulgaria - Kotrag
On January 12, 2023, a monument to the founder of Volga Bulgaria, Khan Kotrag, was erected in Shiryaev on Popova Hill. The monument was made by the famous Bulgarian sculptor Dishko Dishkov. The official opening of the monument to Khan Kotrag is scheduled for spring.