Complex sentence: When the threat of prosecution for the attack on Clisson was lifted, Craon returned to France; however, his enemies instituted legal measures to recover the money that Craon had misappropriated from Louis I, Duke of Anjou.
Split into simpler sentences: When the threat of prosecution for the attack on Clisson was lifted, Craon returned to France. However, his enemies instituted legal measures to recover the money that Craon had misappropriated from Louis I, Duke of Anjou.