Tervel of Bulgaria
（重定向自Tervel）
![](/Images/godic/202502/15/Saint_Tribellius3308.JPG")
![Tervel of Bulgaria monogram](/Images/godic/202502/15/Tervel_of_Bulgaria_monogram3308.jpg")
![Bulgaria during the rule of Tervel. The territorial expansion of 705 can be seen on the map.](/Images/godic/202502/15/The_foundation_of_the_BG3308.png")
![The Madara Rider.](/Images/godic/202502/15/Madara-rider-Svik3308.jpg")
Khan Tervel (Bulgarian:Тервел) also called Tarvel, or Terval, or Terbelis in some Byzantine sources, was the Emperor of Bulgaria during the First Bulgarian Empire at the beginning of the 8th century. In 705 Emperor Justinian II named him Caesar, the first foreigner to receive this title. He was probably a Christian like his grandfather Khan Kubrat. Tervel played an important role in defeating the Arabs during the Siege of Constantinople in 717–718.