Complex sentence: They were captured with 12 boyars, but were soon freed in exchange for good relations between the peoples, peace was agreed and Stefan and his older brother Pribislav escorts the prisoners towards the border beyond Rascia.
Split into simpler sentences: They were captured with 12 boyars, but were soon freed in exchange for good relations between the peoples. Peace was agreed upon and Stefan and his older brother, Pribislav, escorted the prisoners towards the border beyond Rascia.