Complex sentence: With Fouquet languishing in prison, Aramis initiates the second half of his plan and kidnaps Louis XIV, imprisoning him in the Bastille taking Philippe's place, and then convinces Baisemeaux to replace the king with Philippe.
Split into simpler sentences: With Fouquet languishing, Aramis initiates the second half of his plan. He kidnaps Louis XIV, imprisoning him in the Bastille in Philippe's place, and convinces Baisemeaux to replace the king with Philippe.