Complex sentence: A Roman historian Titus Livius i.e. "Livy" (59 BC--AD 17), wrote a main narrative of the Battle of Lautulae which is far more favorable to the Roman cause.
Split into simpler sentences: A Roman historian, Titus Livius i.e. "Livy" (59 BC--AD 17), wrote a main narrative of the Battle of Lautulae. This version is far more favorable to the Roman cause.