Krum ruled Bulgaria in the early ninth century. In 811 Emperor Nikephoros I invaded and captured Pliska. During the withdrawal, Bulgar forces blocked the route with timber barriers. Theophanes is a major source, writing from a Byzantine perspective. Led resistance to the campaign of 811. The Byzantine army was defeated during its retreat. The later Suda attributes laws to him. The account of the victory and the later account of his laws are different evidence.
History of Bulgaria
