revision preference src: He was apparently the eldest son of a wealthy shepherd from the Haemus Mountains, according to Madgearu. No source recorded that son or son's brother, Asen, owned cattle. <SEP> tgt: He was apparently the eldest son of a wealthy shepherd from the Haemus Mountains, according to Madgearu. On the other hand, no source recorded that he or his brother, Asen, owned cattle.