Complex sentence: According to Plutarch in his "Life of Romulus", Romulus refused to succeed Numitor as king of Alba Longa, which would seem to contradict Romulus' warlike personality.
Split into simpler sentences: According to Plutarch in his "Life of Romulus", Romulus refused to succeed Numitor as king of Alba Longa. This would seem to contradict Romulus' warlike personality.