Benjamin

"BAJAN [Beniamin]. Theophanes Continuatus names "Ioannes…et Beniamin Petri fratres"[78]. "Baianum [et]…Petrum" are named as the two sons of Simeon by Liutprand, who specifies that the former studied magic and "possessed the power to transform himself suddently into a wolf or other strange animal"[79], although it is possible that "Baianum" may refer to one of the other known sons of Simeon, possibly Ivan, as this is the only reference which has been found to a son of this name."

• Source - http://fmg.ac/Projects/MedLands/BULGARIA.htm#PeterIDied969A