Complex sentence: In 1632, he was exiled from France after a duel; when Ninon's mother died ten years later, the unmarried Ninon entered a convent, only to leave the next year.
Split into simpler sentences: In 1632, he was exiled from France after a duel. When Ninon's mother died ten years later, the unmarried Ninon entered a convent, only to leave the next year.