Boris I of Bulgaria
His father had with his brothers Strojimir and Gojnik, defeated the Bulgar Army sent by "Tsar" Boris I of Bulgaria and led by his son Vladimir. Vladimir was captured together with 12 boyars. Boris I and Mutimir agreed on peace (and perhaps an alliance), and Mutimir sent his sons Bran and Stefan beyond the border to escort the prisoners, where they exchanged items as a sign of peace: Boris himself gave them "rich gifts", while he was given "two slaves, two falcons, two dogs, and eighty furs".