Dulo clan
Attila's many children and relatives are known by name and some even by deeds, but soon valid genealogical sources all but dried up, and there seems to be no verifiable way to trace Attila's descendants. This has not stopped many genealogists from attempting to reconstruct a valid line of descent for various medieval rulers. One of the most credible claims has been that of the "Nominalia of the Bulgarian khans" for mythological Avitohol and Irnik from the Dulo clan of the Bulgars.