Emperor Romanos IV Diogenes References External links Detailed List of Bulgarian Rulers Sources 10th-century births 11th-century deaths 11th-century Bulgarian people 11th-century Byzantine people Medieval Bulgarian nobility 11th-century Bulgarian monarchs Alusian Bulgarian princes Byzantine generals Cometopuli dynasty Bulgarian people of the Byzantine–Bulgarian Wars Medieval Bulgarian military personnel Magistroi Byzantine people of Bulgarian descent Uprising of Peter Delyan Sons of emperors